A/N: Sup guys. wiErD here and I have another chapter for you guys.

Hope ya like it!

Disclaimer: I don't own any of the two stories. All goes to their respective owners.


- Dragon vs Phenex –

The discussion about the rematch between Natsu and Issei against Riser continued without much of a problem. The battle will be held in an open dimension where only the households of Gremory and Phenex were able to watch.

Anything else will remain hidden in the eyes of other devils at the request of Sirzechs to conceal the dragonslayer in the process.

They were given enough time to prepare themselves as members of the Occult Research Club meet up with Natsu and Issei who were ready for the upcoming fight.

Tiamat stood out ahead of the two near the portal leading to the battleground as the two finished their doings before heading out.

"Is this battle really necessary? I don't know what would that Phenex will gain just by challenging him and the Sekiryuutei." Tiamat crossed her arms in confusion, looking at Sirzechs.

"Riser is known for his arrogance and I can think none of anything to convince him to stand down. Besides, the boy has made his choice. There's no turning back now. They'll have to face him again." The crimson-haired Maou sighed.

"I know but still–" She looked at the pinkette in great worry since he just recently recovered from his fight against Riser. Although she was aware of his hidden powers, fighting an opponent after one heavy fight will pose as a great problem to his body.

The unexpected use of his incomplete version of the Dragon Force is enough proof for her to realize that the boy's power is unstable.

"There isn't enough time for us. The battle is about to begin. We also need to prepare ourselves." Sirzechs turned towards Rias and her peerage who only nodded in response and followed the Maou towards the portal, leading to the side of the battleground as observers of the fight.

They all gave their regards to the two as they disappeared into the portal, leaving only the two of them together with Tiamat.

"I guess this is it." Issei spoke in anticipation.

"Yeah." Natsu replied.

It didn't take long before Ddraig began to speak from his gauntlet to join in the conversation.

[Remember boy. The power I gave to you will only last for 10 seconds, you should put everything in your power to beat down that punk.]

"I know that. I'll just have to make use of it when I have a chance. If I can't bring him down with all my might, I'll have to leave everything to Natsu." The brunet clenched his fist in determination.

[Sorry but I think your brother isn't getting much help in this fight.]

"What do you mean?"

[Take a good look.]

Issei looked at the dragonslayer who slowly began to show signs of fatigue all over his body. It didn't take long as Natsu momentarily lost his strength and almost fell down if not for Tiamat supporting him back up with a worried expression.

"Natsu!"

[As I expected, the Dragon Force takes too much toll on his body. It seems like your body isn't trained well enough to use that power for too long.]

"I-I'm fine. I just need a little bit of rest." Natsu tried to brush off their worries with a reassured look but it didn't convince them one bit.

"He was just fine moments ago, right? What happened to him?"

[The boy has some great healing abilities and recovery but his body isn't well trained enough to withstand the aftereffects of the Dragon Force. Even if he has these great traits, it would be meaningless if he can't train his body to use the form freely.] Ddraig explained.

"Is it really that powerful?" Issei asked doubtfully.

"It is. It's the final form of the dragonslayer taking in the powers similar that of a dragon and it's a lost art that has been kept hidden within the world for so many years. Even a single hit can actually injure a dragon. Ddraig and I were no exception." Tiamat explained as she tried helping the pinkette stand up straight.

[It might be said to be as strong as that of a Balance Breaker. What's more dangerous is that he used it in its incomplete state. What do you think might result in that fight if he managed to assume the complete form of it?]

"Well, that's–" Issei stopped on his words.

"That's enough about it. Both of you still have a battle ahead. You must not waste your energy over such things." Tiamat interrupted their flow of conversation as soon as Natsu was able to recover himself.

But before anyone of them could continue, a flame circle erupted from behind as a familiar girl revealed herself to the three. Natsu and Issei could only widen their eyes in surprise as the girl approaches them.

"Ravel Phenex?" The two spoke out in unison.

"Pardon my intrusion. But I would like to speak something for Natsu-sama." Ravel bowed politely and it was not long before Natsu pointed a finger at himself at the mention of his name.

"Me?"

On the other hand, Issei slowly made his way towards the portal to let the matter discussed properly to them alone.

"I'll be going on ahead. I'll wait you there, Natsu." He said before walking towards the portal, leaving only Tiamat and the two alone.

Natsu turned towards the blonde girl with confusion since he doesn't remember having any business regarding to her.

"So what do you want to talk about?"

Without even wasting a second, Ravel bowed in front of dragonslayer with a frantic voice.

"Natsu Dragneel! Please, defeat my brother!" Natsu felt the need to repeat her statement as his face drew even more confusion towards a sudden plea.

"E-Eh? Defeat your brother?"

"Yes. I know Onii-sama can be a bit overstepping at certain but it seems like he's gone really far this time! That's why I wanted to speak to you." She spoke.

"W-Well even if you didn't say that, we're still going to defeat him anyways-"

"That's not the case here! Onii-sama will not hold back this time. I don't know what goes inside his mind right now but I'm sure he will try to harm you once the fight starts." She warned.

"There's no need to worry, I supervise the battle and I can easily cancel the match if there's any killing intent involved with the participants." Tiamat reassured.

"I know but still, I'm just uncertain what my brother intends to do so be careful out there. I know that it is not my place to say anything like this since we're opponents in our last battle but I wanted to at least inform you of the incoming battle ahead." Ravel continued with her head bowed down in front of the dragonslayer.

"So basically, you're worried about him?" Tiamat assumed. Her eyes quirking in suspicion towards the Phenex girl.

However, that statement got her flustered and shocked at the same time as her cheeks immediately went beef red and retreated a few steps away from the pinkette with an awkward expression.

"N-No, that's what I–" Ravel tried to deny the Dragon King's answer but was interrupted by Natsu who spoke afterwards.

"Alright, got it. I'll make sure to remember that in the fight so thanks." He smiled which soon got the Phenex girl in a daze.

Tiamat could sense a very dangerous scene for her as she suddenly pinched Natsu's side, cutting their conversation and pulled him close to the portal.

"O-Ouuuuch! It hurts!"

"If that's all then there's nothing more to discuss, right? Let's go, Natsu." The blue-haired woman pulled him into the portal, without giving the girl a chance to say anything as they disappeared from sight.


The place of the battlefield is a deserted wasteland stretching far infinitely towards the horizon. A red sky from above is accompanied by countless illuminating lights that looked like the Northern Lights. Two tunnels are seen from both sides where the participants are meant to arrive.

Rias and the others were situated outside the battlefield as they watched the impending fight through a hologram with Sirzechs and Grayfia along with them.

Riser on the other hand, stood on one of the corners of the field waiting for his opponents with an angered look on his face. After all, he didn't like anyone making him wait. Even worse, the person whom he'd lost is his opponent.

It's no wonder why he's like that right now.

On the other end of the tunnel, Issei and Natsu are about done with their preparations as they both unleashed their powers to fight.

"Are you done?" Issei looked towards his brother in anticipation as the pinkette nodded in response before heading out.

"Natsu." Before the dragonslayer could step out the field, Tiamat called him back.

"What is it, Tiamat?" He titled his head in confusion. She simply approached him and handed out a blue lacrima in which he grabbed before looking at it in confusion.

"What is this?"

"It's a dragon lacrima. A power orb consisting the powers of a dragon. My powers to be exact." She explained.

"Why are you giving this to me?"

"Your body is in no shape to fight unless you needed rest. There's a chance where you might lose your strength in the middle of the battle or worse, you might hurt yourself so I wanted you at least to accept my power." She offered.

Natsu stared at the blue orb for a moment.

"T-Thanks, I guess. But you don't have to go that far for me." He looked at the glowing blue orb before blue flames sprout forth from it and entered to his chest like a transfer of power.

Natsu suddenly felt a change in his powers as if his powers doubled ten times apart from it was before.

"It's only temporary so make use of it. You're battling a Phenex so use your powers to your advantage along with the Sekiryuutei." She said.

"Sure. And thanks, Tiamat." Although it was not needed, he felt that he wanted to thank her for lending her powers.

And with that, he finally entered the battlefield where Issei is waiting for him.

It didn't take long for him to reunite with his brother as they both faced Riser along with his selected piece. Their eyes however, widened in surprise at the recognition of the figure.

"R-Ravel?"

The girl gazed down at her feet with no will to fight them. Riser stood between her and the boys as put up a condescending attitude towards them.

"So you two finally showed up huh?" His eyes glared solely at the pinkette.

"What's the meaning of this, Riser? Are you planning to have your sister fight too?" Natsu demanded, wanting to know behind his actions. They thought he would choose Yubelluna to fight with him but it looks like he picked Ravel instead which doesn't make any sense.

"Is that what you're worried about? Maybe I can think of something that might force you to stand down if I threaten her right now." He lifted his finger and pointed at Ravel as if blasting her away.

The girl was surprised before instantly overcame with fear and confusion after hearing what her brother had just said.

"You bastard-"

"Don't get the wrong idea. I'm just testing you two. I don't plan on hurting my sister however, I find it strange for you to have any connection with her despite being enemies." He laughed heartedly.

"That's none of your business!" Natsu spat.

"Well anyways, enough with the chit chat. I'm gonna settle this fight by burning both of you until there's none left." His expression suddenly turned hostile as both Natsu and Issei raised their guard up after noticing his killing intent.

"Stay there, Ravel. In fact, I won't be using you for this battle so you can just watch. Is that clear? I'll take them on both myself." He briefly glanced back to the girl.

"Y-Yes, onii-sama." Ravel cowered as she stepped back away from him and watched in a fair distance between them.

"So you're planning to take us on alone?"

"The Sekiryuutei isn't much of a problem. The only one I'm going to beat is you, human." Riser intimidated.

"Heh, don't underestimate my brother or you'll regret it."

"I don't even have to."

Their eyes gazed intently at each other as both sides prepared themselves to battle.

For what it seemed to be their final conversation, the air surrounding them suddenly became silent and still. It was not long until Riser suddenly sprouted his flame wings and dashed straight towards the two in an insane speed that surprised the two in the process.

Before they could realize even what's going on, they were immediately flung away further to the battlefield as Riser grabbed both their heads and blew them away with his speed.

A couple of observers were completely shocked at the display of speed Riser made just now.

"Wha-What just happened?" Rias couldn't follow her eyes through the attack.

"He's fast." Kiba blurted out. Only Sirzechs and Grayfia were the only ones who aren't surprised at the predicament.

"It seems like Riser recognizes both of them as strong opponents. For him to use his full powers against these two simply explains that both Natsu and Issei were formidable opponents that are not easily underestimated. He will not fall for the second time." Sirzechs muttered.

"Not to mention, his extreme hatred towards the other boy for defeating him is also the reason why he's not holding back. He'll try to do the same just what Natsu did to him." Grayfia added.

"Does he intend to kill both of them?" Akeno feared.

"No, he can't while both houses are watching this fight. If anything comes to show, we'll fix the situation." Sirzechs reassured.

"Plus, the Chaos Karma Dragon is also watching."

Rias and the others could only watch as the battle between them continue.

Back at the battlefield, Natsu and Issei recovered themselves momentarily as they felt dumbfounded of witnessing such speed. It isn't the same like their battle last time.

They're going to fight a full-powered high-class devil for the first time.

"Tch, I can't believe he had that kind of power. It makes my fight with him before quite meaningless since he's not giving his all that time." Natsu glared back at the Phenex before him.

"Well, he did not expect you to be strong like that so he's being cautious." Issei added.

"Right now, he's only focusing his own fight against me. This will be our advantage, Issei."

"What do you mean?"

"As he said to us before, he's underestimating you. If I can keep him occupied long enough for you to activate your power, that's the only time we will counterattack and defeat him together." Natsu proposed.

[Sounds like a good plan. I agree with him, partner.] Unexpectedly, Ddraig joined in the duo.

"Ddraig?!" The two boys exclaimed in surprise.

[However, are you sure you can hold out, boy? This is a high-ranking devil we're talking about here.]

"If what Tiamat said is true about me then it shouldn't be a problem for me. Dragons are known to be resilient and stubborn and it would be the same as me!" Natsu said proudly.

[Heh, you definitely are lot like him.]

"Huh?" Natsu asked in confusion.

[Nevermind that. Let's go and put that bastard down!]

"Yeah!" They shouted in unison.

"Hmm?" Riser's eyes quirked in confusion as Natsu stepped up to him alone as he saw Issei backing away a bit, gaining enough distance for the both of them.

"So you finally decided to face me alone. If you relied help from your useless friend all the time, I would've lost my interest. Though I doubt the Sekiryuutei can do anything against me having such a useless host." He sighed in disappointment.

"Hoh? Is that how you see him? Well in that case, best prepare yourself because I'll take everything you said about my brother back." Natsu snarled.

"Hmph. I will not be defeated by anyone. Not anymore! Even to you, lowlife!" Riser heightened the usage of his power as Natsu began to use his power once again.

Soon afterwards, blue flames began to circle around the pinkette as if engulfing him in azure light. The intensity of the flames was hotter than it was before, catching everyone's attention after witnessing it.

"What is that?" Akeno asked in disbelief.

"I've never seen that power before. How did he-" Even Grayfia was surprised since she could sense the overwhelming pressure of magic surrounding boy. Not only were that, the field around him turned into a scorching earth due to its intense heat. Even Issei had to take a few more steps back to avoid the scorching heat filling up the entire field.

Sirzechs narrowed his eyes before glancing away towards the distance, recognizing what's happening.

'Tiamat, huh.'

He set aside his thoughts for a moment before turning his attention back to the fight.

On the other hand, Issei was surprised at the new power he witnessed from his brother. It's not the same flames he used before in their fight against Riser.

"What kind of flames is that?"

[It's Tiamat's power. It seems like she lent a portion of her power to help him fight against Riser since he's condition is still not fully recovered.]

"That's Tiamat's power?"

[Yeah. A power that belonged to the strongest of the Dragon Kings. That's Tiamat, the Chaos Karma Dragon.]

"So cool."

[This is no time to be amazed right now, partner. That power is only temporary and Natsu might fizzle out soon before we could even use our power against him.]

"Right!" With a determined expression, Issei focused on channelling his powers to his gauntlet in order to bring out his power he got from Ddraig.

Going back to the two, Natsu continued to pour out his power as azure flames continue to envelope him in a dome of fire that soon shot out to the sky. Tremors resulted in its destructive power and Riser couldn't understand the unfolding situation.

"Wha-What is happening?" He asked himself in disbelief as the flames soon began to recede, revealing Natsu in new form.

His eyes soon began to shift towards the Phenex in determination.

"Let's get going, Riser. You still have more in you, right?" Natsu taunted.

"Kugh–Don't underestimate me, human!" Riser shouted as he instantly dashed straight towards the dragonslayer with right flaming fist.

In just a flash, Riser collided his fist towards Natsu that soon emitted large shockwaves around them though he was left completely distraught upon seeing his attack easily blocked by him in just one hand.

"What the-"

Natsu never moved from his position before summoning azure flames around his hand where Riser connected his fist at and blew him away in a sea of fire.

Fortunately for Riser, the flames only damaged his clothes since he's immune to flames. Although, the flames he used in their last fight could easily hurt him, the azure flames aren't that harmful as before.

"Keep your eyes on the fight!" Natsu caught his attention as he descends down with flaming kick above him.

"Silence, human! I don't know what tricks you've put on our fights but I'll make sure to put you down until you won't get up!" Riser blocked his attack with a responding kick that both sent powerful shockwaves around them.

Their clash ended as the two leaped away before landing a full stop away from each other as they both looked at each other briefly.

"Good 'cause I'm getting fired up!" Natsu smirked before putting a taunting gesture towards him.

"Chaos Fire Dragon Mode!"

"Die boy!"

Both Phenex and Azure flames clashed to each other in such intensity that every collision of their attacks sends a powerful shockwave that soon resulted a powerful tremor that even one could describe as a battle between monsters.

Both Natsu and Riser exchanged their attacks, taking blow after blow and recovering their stances in a quick fashion despite the huge punishment sent towards their body with their fists.

Since both of them knew that they're immune to flames, they resorted to brute force, putting up as much power they could have to take each other down.

As a result, they simply battled themselves into hand-to-hand techniques. Natsu held on his own with his resilience while Riser relied on his stamina and fast regeneration to withstand the dragonslayer's killer punches and kicks.

Riser managed to connect one of his fist once more on the pinkette's face, sending away though Natsu easily recovered from it before punching the ground to lose his opponent's balance. A powerful tremor resulted afterwards as debris and rocks crumble beneath them.

"You bastard!" Riser gritted his teeth before forcing himself to fly to the air to avoid the tremor however, he lost sight of the pinkette and simply glanced around to look for him.

It didn't take long for him to realize as a shadow loomed above him, revealing Natsu with his fists clasped together.

A fierce collision of Natsu's fists on Riser's head brought out a powerful gale and sent the devil back to the ground, resulting a cloud of debris as Issei was forced to shield his eyes from the dust.

However, the onslaught is not yet done as he saw Natsu forming a large ball of azure flames in mid-air, seemingly aimed at the cloud of dust below him.

"Chaos Fire Dragon's Blazing Azure Flame!" He swiped his hands down in which the blue fire ball followed suit and slammed down to the ground, creating another massive destruction around them.

The power of the spell was so strong that it dug through ground before resulting a powerful blue explosion that shocked everyone.

Moments later, the smoke cleared and the destruction is finally revealed as a large crater is seen at the center, spanning several kilometres that shocked the observers.

"T-The field is-"

"Obliterated?" Akeno exclaim in shock at the scale of its destruction. The level of power is definitely higher than a normal high-ranking devil.

Riser was able to escape the destruction as he used his wings to avoid the fireball aimed at him. Unfortunately, he only managed to survive barely through since his clothes were scorched despite having to dodge the entire ball itself.

If he took it head-on, it would definitely settle the match but something was not right.

"Damn you, just where did you get all that power?"

Natsu ignored his opponent's question and simply focused on the fight. Both of them covered a fair distance from each other as he landed back to the ground while Riser rose above the skies, looking down on him with caution.

It didn't take long until his fatigue caught up with his body and begins to show signs of exhaustion after releasing that powerful spell just now.

'Damn it! Why now of all times?!'

He slowly knelt in exhaustion as he can't keep the form forever. Taking Tiamat's powers surely doubles his strength but it also strains his body faster than he would've expected. The battle has just lasted for about a couple of minutes and he's already tired.

"What's wrong? It seems like you're about to reach your limit, huh?" Riser taunted. Natsu could only look up to the man in frustration.

"I guess, there's no helping it."

Taking a step back from his left foot, Natsu assumed his stance as he began to pour out all the remaining bits of his powers into his one final move.

A sudden change of magical pressure was felt by both sides as Riser immediately took caution of the pinkette's actions and narrowed his eyes in caution.

Blue flames swirled around his body as he slowly rotates his body along with his hands at the ready.

"Dragon Slayer's Secret Art Revision: Chaotic Lotus, Exploding Azure Blade!" Spinning his arms in a circular fashion, Natsu generates a massive torrent of blue flames towards Riser.

"I won't be defeated here!" With a defiant shout, Riser enlarged his flame-wings before closing in for a nose dive towards the whirl of flames. His wings grew larger until it formed a shape of a phoenix that soon collided against the torrent.

Huge gales and shockwaves resulted at the intense power struggle between both sides. Neither one side intends to give in to the other as Natsu and Riser poured out their powers to overpower each other.

However, Natsu's stamina is reaching its limit and the borrowed power begins to fade away from his body.

Gritting his teeth in frustration, Natsu finally shouted.

"Let's go Issei!"

With the last of his strength finally poured out of his system, Natsu dissipated his flames before a green flash zoomed past him to meet up against Riser with amazing speeds.

"What-" Riser wasn't given the time to react as Issei in his seemingly red armored suit collided his head against him, sending him flying in pain as he took the full hit of its hardened armor.

Natsu's appearance reverted back to normal before casting a glimpse of his brother facing Riser. Issei usually dons his gauntlet whenever he goes out into battle but this time, he had a full body armament.

It was some sort of a futuristic suit only honed with magical properties as Natsu could feel the presence of great magic within it. He could feel the presence of the dragon hosting inside his brother in that form.

"Sorry for the wait, Natsu." Issei spoke.

[It took awhile but I guess he's finally did it.]

On the other hand, spectators from the outside were utterly shocked at Issei transformation.

"Balance Breaker?! How in the world did he use that?" Rias commented in surprise.

"Isn't that a forbidden move?" Kiba added.

"It was supposed to be like that." Sirzechs corrected. The others looked at the crimson-haired Maou in disbelief.

"Supposed to be like that?" Sirzechs nodded lightly at the response before looking back at the battle.

Eventually, all eyes returned back to the screen as they watched Issei confront Riser for the first time.

Riser however, simply laughed at Issei as if he'd done something stupid.

"Ha, you– and your weak Sacred Gear is going up against me? Don't mess around with me. How dare you interrupt my way of annihilating that human!"

"Sorry but I can't just stand around and let Natsu do all the work. We'll bringing you down one way or another!" Issei declared.

"Heh, show me what you got, Sekiryuutei! Show me the true power of the Dragon Emperor!" Riser challenged.

[Let's go, partner!]

"YEAH!" With a defiant shout, Issei utilized his powers and simply disappeared into green flash and collided against a flaming blur.

[Ten!] The sound of the countdown boomed through the vast battlefield as the duration of the power began to lessen.

"Take this!" Generating a large green orb with his two hands, Issei shot out a powerful beam towards him in which he barely dodged before resulting a huge explosion.

Riser immediately noticed the display of power brought by him and decided to face him seriously.

"Kugh-you two are no more than different from monsters!" Riser sent a whirl of fire towards him in which Issei narrowly dodged before using the thruster from his back to propel him close to him with right hook.

[Nine!]

A loud smack boomed throughout the field as Issei nailed his armored fist right into his cheeks, sending his body tumbling away from the battlefield.

Riser recovered his momentum with the use of his wings and gritted his teeth in anger after taking a hit from him.

"You'll pay for that!" Without hesitation, Riser shot out a large wave of flames towards Issei, forcing him to raise both his fists before a shield formed before him and deflected the wave into many separate beams that crashed into random places, disregarding anyone who gets hit in the process.

Ravel could only watch helplessly as one of the beams is aimed at her in such speeds that forced Natsu to get up and tackle her away.

"Watch out!" In just a few seconds, Natsu saved her just in time before the beam could hit her and skidded away with him holding her protectively close to his chest.

Ravel was simply astounded at the sudden turn of events as Natsu let go of his hold and decided to catch his breath before looking back at Riser with an angered expression.

"Damn, that guy. Even going as far to injure his little sister." He muttered, not fully aware that she was just right beside him.

"I'm sorry." Ravel apologized which soon caught his attention.

"Oh, I didn't mean to-uhm…"

"No, you are right. Nii-sama is already beyond my reach. If anything going to get him back to normal, it has to be your win against him."

"Well, I'm in no shape to fight any longer. The only thing I can do now is to believe in my brother." He grinned while ignoring the strain on his body as he rested down to recover.

Ravel looked at him in worry before biting her lip in frustration as she held tight on her last Tear that she brought in this battle.

..

..

There's only one thing she could do in order to end this fighting.


The battle rages on as Issei continued to pummel Riser with his powerful punches with only less seconds to keep his battle form against him. Despite all those efforts, he cannot put the Phenex down with just brute force since he possesses great healing abilities.

"What's wrong?! Is that all you've got, Sekiryuutei?!" Rier mocked as he threw another large flaming ball towards him.

Issei responded with the same power output and launched a powerful beam that easily penetrated through the fireball and went straight to Riser, sending him flying away further into the sky.

[Eight!]

Using his thrusters, Issei zoomed towards him in blinding speeds and delivered a punch in his stomach, sending him back to the ground.

A huge cloud of dust erupted in his descent as Issei waited a few seconds for it settle until a large disk made of fire was launched towards him, barely dodging it as he saw Riser slowly regaining his foot with slight injuries all over his body.

"Tsk, even with all that punishment, he's still standing up." Issei whispered irritably.

[That guy has some great healing abilities far better than Natsu himself so defeating him is not that easy. You'll need to keep damaging him to the point where he can't heal his injuries all at once just like what Natsu did back then, it's the only thing that can help us win through this.] Ddraig advised.

"Easier said than done. He's being cautious and I can only last only at a few more seconds." Despite the complaint, Issei can only hear the dragon chuckle at his reply.

[Well, you'll just have to keep on attacking him.]

"Was thinking the same thing." He agreed.

[Seven!]

With that said, Issei resumed his onslaught against Riser as he amassed another large beam and aimed it towards Riser.

"Don't get ahead of yourself, lowlife!" Riser responded with a torrent of fire as both powers collided with each other and blew everything away in their vicinity.

Both sides struggled to overpower until their attacks faded instantly and dissipated in which Issei used as an opportunity and zoomed forward to attack him head-on.

"What the-" Riser wasn't given the chance to respond as he felt a forceful kick in his chest, sending him further away. Crashing into one of the rock debris, Riser tried to recover himself but Issei kept on coming towards him and continue to attack him relentlessly with a series of punches and kicks that even he could not regenerate his body fully.

"Damn you!" Somehow, he managed to land a blow to Issei's face, shattering his helmet open but stood his ground and simply went on continued his onslaught.

[Six!]

"Haaaaaaargh!" With a right uppercut, Issei sent him off the ground and attacked him in mid-flight without giving him the chance to recover from the hits.

"TAKE THIS!" With roaring shout, Issei generated another huge beam on his hands and sent it towards him without hesitation. However, Riser managed to dodge it in time as he proceeded with a counterattack and kicked the boy away from him.

"Know your place!"

Issei plunged back to the ground with a huge cloud of debris kicking up after his descent. Riser watched momentarily as the cloud settled and revealed a wounded Issei on the ground as his armor started to crack in some places after taking such a huge hit.

That kick was not ordinary. It was powerful enough to knock out a normal devil. Issei was fortunate since he donned his Balance Breaker to withstand attacks like that for a short amount of time.

However, despite surviving that blow just now, he's not at a disadvantage as he saw Riser beginning to regenerate his body back to normal.

[Five!]

"This is the end, Sekiryuutei!" Riser amassed a huge fireball above his hands. It seemed large enough to engulf Issei wholly if launched against him. The size was unnaturally as if he created a small sun just by looking at it.

There's no escaping this attack.

"Die, dragon!" Swiping his hands down, Riser sent the huge fireball down towards him. Issei could only shield his eyes as he braced himself from the attack.

In just like that, the whole field below was engulfed in fire as the ball exploded upon touching down the ground and enveloped everything in flames.

Riser smiled in satisfaction after seeing his opponents finally defeated before his eyes.

"Hmph, it seems like you two are all talk." He muttered in disappointment.

He was about to turn around and head back until a slurping sound rang on his ear, causing him to glance back as the flames swirled into one direction.

"I-Impossible! How did you-" His expression turned into disbelief as he saw Natsu infront of Issei absorbed all the flames around them, completely negating the effect of his attack by just eating it.


[Dragon Force – AMV]


"Yaaaataaaa, thanks for the meal." He patted his stomach after taking all the flames inside of him, powering him up once more.

"Natsu?" Issei stared in surprise at his appearace. Even Riser was also shocked after finding him well enough to fight.

"That's impossible! How are you still able to stand up–" His words stopped as his thoughts immediately went back towards the girl on the sidelines.

His eyes widened in shock after seeing the small bottle held in her hands was empty.

"Ravel, you-" His expression turned into anger after realizing of what's going on before looking back at them.

On the other hand, Issei was still surprised until Natsu looked back at him and offered his hand.

"Come on, Issei. You still got more power left in you, right? Then let's finish this and go home with the others!"

"Yeah!" Taking his hand, both of them faced Riser in determination.

"If this is how it ends then I shall gladly use all of my powers to incinerate you all!" With a last ditch effort to bring them down, Riser tried to use all of his powers and formed a massive pillar of fire on his hands as if shaped like a huge blade, aimed at them.

"You're not getting away!" Both boys shouted in unison as they dashed separately and stopped Riser from unleashing his spell. They both connected their fists towards his face and sent away before releasing their powers.

"Fire Dragon's Roar!"

"Dragon Shot!"

A stream of fire and green combined into a massive torrent that soon engulfed Riser, wounding him in the process after taking a full hit of the two powers of the dragons against him.

His body was burnt with multiple injuries and scratches all over it, leaving him completely defenceless and powerless to regenerate himself quickly.

[Four!]

"Let's finish this in one final attack!" Issei shouted.

Stretching one of their arms back, Natsu and Issei began to pour out all of their powers as a huge ball of fire and green appeared behind them, combining into one surge of power that was felt even outside the battlefield.

"What a pressure– To think that their power is even felt through here." Grayfia stuttered in surprise. A power like that is similar to a Maou that could obliterate anything that stand in their way.

She clearly felt a huge immense of power coming from the two as if there were two dragon uniting their powers into one.

Tiamat was silent throughout the observation but her eyes widened in surprise as she saw a vague apparition of a red dragon behind Natsu as if it was supporting him.

"I-Igneel?!"

[Three!]

Back at the battlefield, Riser could only grit his teeth in frustration as he could sense danger coming from the two after merging their powers together. His injuries are still healing and he doesn't have enough strength to move further.

Despite him being immortal, Riser has a limited amount of stamina and his powers could not restore it. With that, he's vulnerable against long-term battle fights since he can't replenish his stamina with his own regenerative abilities.

Turning his eyes far to the corner where he spotted her, Riser simply shouted.

"Ravel! Give me one of your Tears now!" His voice sounded more like a threat rather than a command.

Surprisingly, Ravel never moved from her position and simply bit her lip at his harsh reply.

"What are you waiting for?! GIVE ME A PHENEX TEAR!" This time, his voice became desperate and Ravel could only shook her head before tears went down from her shadowed face before uttering a whisper.

"N-No, Onii-sama."

[Two!]

And in just like that, anger rushed all over his system until his attention went back to the two who finally finished their powers and looked at him one last time.

"I-I can't be defeated here! Not by the likes of you two!" In a desperate attempt to win, Riser rushed towards them like a madman to stop them.

However-

He was already too late.

[One!]

"Fire Dragon Emperor's Crimson Fang Flash!" Thrusting both of their hands forward, Natsu and Issei delivered a huge stream of energy towards Riser, engulfing him completely and ravaged through the other end of the battlefield before resulting a massive explosion that erupted through the distance.

A huge light enveloped the entire area, blinding anyone from watching as the field was simply engulfed into a bright light.

It took only a few minutes for the light to simmer down and revealed a war-torn field as smoke and embers resulted the aftermath of the attack.

A figure was seen heavily wounded at the far end of the field as Riser was knocked unconscious with his body sustaining burns and other injuries.

Ravel on the other hand, sheltered herself from one of the sturdy rock formations and looked at the battlefield and saw Issei and Natsu panting in exhaustion after using that one final move. Issei returned back to his normal self, leaving him in his student clothes while Natsu sweated heavily from the full usage of his power after that one final move.

"T-They did it… T-They've won."

Everyone was just shocked at the current turn of events. Even Lord Phenex was surprised at the aftermath.

A collective wave of smiles was seen from the Occult Research group after seeing the battle finally ended in their victory.

"They did it! They defeated Riser!"

"Natsu-san. Issei-san."

"I can't believe it."

"They're strong."

Sirzechs lightly smiled underneath his breath and simply looked at the two with praise.

Going back at the two, Issei and Natsu simply looked at each other before smiling goofily.

"We won." Issei spoke.

"Yeah-" In just an instant, Natsu fell back on the ground.

"Natsu!"

"Ah damn, everything just hurts now. I can't wait to rest myself after this." Natsu cursed with a smile which only made the brunet to chuckle as he saw their friends finally coming towards them after the fight.

Tiamat smiled warmly as she lifted up her worries at the end of the battle.

"Natsu…"


Three days later… At the underworld.

The medical rooms of the Gremory household were pretty much the same as the real world as Natsu slowly opened his eyes for the first time and found himself yet again facing the white ceiling above him.

The pain on his body was much worse than he'd suffered back after his first fight with Riser. Bandages and cloth wraps are seen all over his body, covering his injuries.

His strength is still yet to recover since he could only move his body in a minimum degree.

"It seems like you're finally awake." A male voice resounded from his left as he saw Sirzechs sitting right beside him as if waiting for him to wake up.

"Umm… You are-"

"The name's Sirzechs. I believe that you might heard of me due to my relation with one of your friends, Rias Gremory." He replied in a calm voice.

"Rias?- Wait, where's everyone? What happened to the fight?" His memories eventually came back to him as he remembered all the past events that transpired after their fight against Riser.

"You won. You and Issei successfully won against Riser in a rematch and the deal regarding my little sister's engagement is finally voided without much of a complaint from the other household." He reassured.

"I see… Then that's fine, I guess." He sighed in relief.

A moment of silence went between them until Natsu changed the subject.

"So where are the others?"

"They are resting on the other room. Issei sustained only a few injuries while you received worse since your body isn't fully recovered during that time with Riser three days ago. Tiamat had to pour some of her own powers just to stabilize your body for a short while until you can finally rest easy."

"Wait- Three days?! I've been asleep in three days?!" He asked as if he was completely shocked at the revelation. Sirzechs nodded lightly at his flabbergasted expression, resulting him to calm down for a bit and rethink about the events the soon came after.

"What happened in those three days? I mean, with everyone." He asked.

"Nothing much although the problem regarding your identity is yet to be solved." He frowned slightly.

"What do you mean?"

"Well, the fight ended out in your favour but the problem regarding about the other devils who caught wind of your identity is still at large. I'm afraid it will not be long until that information will be sent from the outside and even towards the Fallen Angels and Angels Faction."

"So there will be more coming for me, huh?" He lazily shook his head in response.

"It's nothing to worry about. Plus, I assume that the others won't be so hasty on making any move on you since they don't know much about your nature."

"Riiight." He drawled lazily. Honestly, talking about things like these are a pain in the ass.

A knock on the door interrupted their flow of conversation as Issei along with Akeno and the rest of the Occult Research club members went inside to greet the injured dragonslayer.

"Sorry for the intrusion." Rias bowed before letting the others approach the pinkette in relief.

Natsu took his gaze off from Sirzechs and looked over to his friends as a smile went over his face after seeing them fine and well.

"Everyone."

"Natsu!" Akeno and Asia could not hold back their tears and simply threw themselves at the pinkette, surprising him as he caught them just to prevent them from toppling him over the bed.

Issei slightly hissed from the behind but immediately replaced it with a relieved smile after seeing his brother alive and well.

These past three days had them really worried since he won't wake up from that time.

"Thank goodness you're safe, Natsu-san. I was desperately trying to heal with all I've had since you haven't been waking up all this time. I-I'm glad!" Asia cried underneath his embrace, earning him to smile warmly at her caring nature towards him.

"Yeah, sorry for making you wait, Asia. I'm really a stupid brother." He apologized.

"Mmm, I don't care any of that! I-I'm just glad you're okay!"

"Thank you, Asia… I'm also sorry for making you worry, Akeno-san." Natsu apologized at the next girl who only embraced him without saying much of a word as tears streaked down her eyes, wanting to share the moment of being close to him.

The other simply smiled at the heart-warming sight as Rias and the others stood there watching their friends crying out for each other.

"You certainly met such great people, Rias." Sirzechs muttered in satisfaction.

"E-Eh? I-I mean, yes! They're really special to me."

The reunion between friends lasted only for about a few minutes as they all began to talk to each other as usual, easily forgetting the hard-fought battle between Riser and the two. Akeno and Asia were already fighting for the position who gets to take care of the pinkette while the others simply laughed at the sight.

It didn't take long until Tiamat showed herself at the door, interrupting the flow of their conversation as she made her appearance.

"I hope I didn't interrupt your fun." She apologized sincerely which is kinda unusual for Sirzechs since she never took a light presence whenever she shows herself.

"No, not at all. I'm sure you have something to say about problem regarding Natsu's identity to the underworld."

Hearing that topic, everyone stopped and looked at her with anticipation.

Tiamat merely sighed at the expectant eyes gazed on her as she casually spoke about the results.

"As what Sirzechs was talking about earlier, it's too late to keep the secret about Natsu. Even with my presence of overlooking him isn't enough to prevent the information from leaking out."

"So there's nothing we can do about it?" Rias asked.

"That's right. So in order to solve that, Ajuka permitted me to supervise him and live out in the human world together with him."

However, her reply did not exactly sink immediately as several of them were dumbfounded upon hearing her response to them.

.

.

"Eh? EEEEEEEEEEEEEEEHHHHHHHHHHH?!" Rias and Akeno shouted in disbelief as both of them fell from their seats along with the others who had the same expression, except for Sirzechs and Natsu.

The latter on the other hand, drew a rather confused expression while the former cleared his throat as if he was composing himself.

Not gonna lie, the decision was rather surprising to him at least.

"I-I see. So Ajuka approved of your request to stay with him for the time being. I think this is also a great opportunity in order to ensure the presence of the devil's supervision on Natsu. Both Gremory and Sitri agreed on the terms but I never thought about including Tiamat as well." Sirzechs reasoned.

"Sitri knew of his identity too?"

"More or less. Serafall was one of the Satans who watched the Rating Game. Sona and the others are also involved in that but they made no such problem regarding his identity as a dragonslayer. In fact, Serafall helped Tiamat in quelling down any information being leaked out to the other factions although it was not enough." He explained.

"Serafall Leviathan watched the fight?" Rias asked in surprise.

"Of course. She developed an interest regarding on Natsu as well but unfortunately, she had other things to take care of so she wasn't able to watch the rematch." Sirzechs continued. Out in the corner, Tiamat formed a tick mark after hearing that reply.

Their conversation was cut as Grayfia came into the door together with Lord Phenex.

"Pardon my intrusion. Lord Phenex is waiting for you, Sirzechs-sama."

The crimson-haired Satan nodded lightly at the others before standing up and followed the two before leaving a short farewell with the others. Everyone simply bade him with the same gesture and returned back to the usual conversations with each other.

"A lot sure happened in the last three days. I wanna go home early." Natsu groaned.

"Nope, you're going to rest until you fully recovered, Natsu-san!" Asia insisted.

"That's right. You challenged and defeated Riser who is considered to be one of the powerful and high-ranking devils. I think you should give your body some more rest. If you want, I could share my warmth with you in order to make you feel better~" Akeno started with a rather seductive approach on the pinkette until-

A menacing aura rose behind her back as Tiamat glared at the black-haired devil.

"Just who are you to have the right to say such things in front of him?! Do you want to be burned alive?!" Tiamat growled as if she was about to turn into her dragon form, causing everyone to panic.

"T-Tiamat-san… P-P-Please calm down!" Asia tried to speak but the situation grew even chaotic after Akeno's next reply.

"Hoh? So the mighty Dragon King is getting in the way, huh? Well, I shared myself next to him many times before. You shouldn't be getting in our way now." Akeno soon clung into one of the pinkette's arms.

Natsu could feel the plushy mounds pushed on his arm and cannot help but hold his nose to prevent it from bleeding.

More importantly, what everyone didn't expect afterwards as Tiamat's reaction towards the intimate skinship between the two.

"Wha–What?! Is this true, Natsu?!" Instead of unleashing her wrath, her face blushed heavily and looked at the pinkette with a flustered look.

"I don't know what she's talking about." He replied almost instantly, unaware of the situation he's into.

"Oh, don't be like that, Natsu. We do these things all the time, right~" Akeno pushed her breasts even further but Natsu tried to remain conscious.

It didn't take long as Tiamat clung herself into his other arm with her own breasts pressing unto it.

The soft feeling between his arms was the killing blow as Natsu felt the heat rising up on his face and could only stutter in response.

"H-Hey, you two… Your breas–"

"Don't get ahead of yourself, devil. I can do as much as I want with him." Tiamat retorted as she pulled him to her side.

"Ara, ara. I won't just allow it like that. I'm his senpai, you know~" Akeno pulled the pinkette close to her in retaliation.

"He's a dragon by nature. It's natural for both of us to take care of each other!"

"His nature doesn't matter. He's still mine~"

"No, he's mine!"

"No, you're not!"

"You're not even marked by him!"

"What's that supposed to mean?!"

"Muuuoooo! Don't bully Natsu-saaaaan!" Out of nowhere, Asia came in hugging the nearly-unconscious pinkette, not wanting to surrender him from either of the two with a blushing face.

"GIVE ME A BREAK, ALREADY!"

Issei bit his lip in jealousy as he comically cried out on the corner with envy towards his brother.

"Damn you, Natsu! I want to be on the same position as you!" He muttered in tears while Koneko simply replied harsh words on him with Kiba chuckling at his friends' antics.

Rias could only sigh with smile as she continued to watch Natsu being pulled on three sides with him nearly having his soul partially out of his mouth. If this goes on, he might die because of those three.

However, the sight of her friends finally okay satisfied her. She was just glad that all of them are safe and sound after dealing with her problem regarding her engagement. She might have to thank both of them for saving her.

Looking towards the window, she could only wonder about the future lay in store for them.

'I wonder how things will go from now on.'


On some unknown location…

A lone figure is seen standing on a dark room as the light of the moon shined through the windows, giving a little bit of visibility over to the room itself. A desk accompanied by a comfy chair is seen near the large window.

The figure stood beside it, facing the outside world in wonder.

"Dragonslayer, huh?" He speaks slowly in a low tone before turning himself towards the empty room covered in darkness.

The light of the moon made it enough to see the figure itself as it describes a lean and muscular man dressed in a marooned leather jacket. A slick of golden strands sweep along the black ones, protruding one side and towards his bangs which covered his face from the moonlight.

He sits on the chair and slowly placed his hands to support his chin as if thinking of something.

"I guess we'll have to make a move soon. You know what you have to do, right?" He speaks onto the darkness until another lone figure revealed itself up front.

"Yes, Azazel-sama." The voice was feminine and the only thing that could be seen through her was her dark hair flowing gracefully in the dark night.

"But what about Kokabiel?" The female asked as if demanding a permission to take someone down.

"Leave him be. I'll have someone to retrieve him if he goes too far."

"…" The female never replied but her expression reveals that it's not enough or rather, she wanted to do something about it.

"You're just going to observe him. If what your information is true about him, we'll need to observe discreetly. The devils are staying more vigilant as ever. The Angels are also making a move soon. It's better to keep a low profile until we can begin ourselves."

"Yes, Azazel-sama." The female replied without hesitation and simply disappeared into sight.

The man called, Azazel sits back comfortably and turned his chair around to face the moon with a deep thought.

"Natsu Dragneel… Just who are you exactly?"


A/N: And there's the final chapter of the Riser Arc. We'll be now moving into the Holy Swords Project Arc with a lot of cameos appearing sooner.

As you can see, Tiamat will now live in the Residence so she's now part of the harem and story as a character. For everyone who's been wondering about a certain fallen angel, I will have her feature soon on this arc where she would also become part of the residence after the peace treaty so look forward to it.

Several cameos and other characters appearing the later chapters will be also featured as well.

I'm sorry that it took longer to post an updated chapter because my family had a major remodel of our house and I had to help out with the duties so I can't touch my stories much often. There's still some work to do but I'm taking off breaks to update chapters little by little so I apologize for the slow updates.

Anyways, hope you enjoy the chapter. I'll see you again on the next update. Thanks for reading and supporting my stories. You have my big thanks and praise for patiently waiting on my updates.

- wiErD SpeCtrumz blacking out… … …