Chapter 15

"Human talking"

'Human thoughts'

"Demon talking"

'Demon thoughts'

"Dragon talking"

'Dragon thoughts'

"Hybrid talking"

'Hybrid thought'

The Bureau of Magical Development is in complete shambles the once half moon shape structure with its clean and smooth design is now reduced to a broken mess with fires sprouting from the roof and upper part, to the giant hole that Natsu made so he can enter the structure. Every other second the building shakes from the battle of the two monsters inside, more and more the buildings structure starts to lose its support, the building might collapse probably within the hour if this keeps up. Inside of the building both Natsu and Zero are covered in both their own blood and the blood off each other. Zero lays a right hook to Natsu face, his giant dragonic fist is more than half of Natsu small frame, the fist completely connects on Natsu causing the small pink haired demon to bleed even more. Natsu however doesn't let that attack slow him down and to combat the size difference everytime Natsu throws a punch or a kick he makes magical construct to apply more damage to Zero over bulked body. Natsu uses his quick movements to appear in front of Zero and lays his own attack, a purple construct in the shape of a giant demonic hand appear and punched Zero sending him crashing towards lab equipment. But like Natsu Zero get up and charges towards the demonic child, in turn Natsu does the same.

"AHHHHHHHHH!" Was Zero war cry.

""Hahahhahahahha." Natsu laughed out loud for his war cry. Both clashed landing multiple punches at the same time and in unison, Zero soon had the advantage seeing how the only thing he has to control is his fists, while Natsu had to use more concentration for his magical constructs to be in sync with fists or not it will be wasting away magical energy, not to mention he still hasn't got the hang of it seeing how he barely remember how to use it. Zero manage to grab the arms of Natsu's magical construct and toss Natsu around like a rag doll, swinging Natsu into the ground back and forth like a bag of ice being thrown to the ground so it can break into little pieces. Natsu quickly turned off his arm constructs causing Zero to drop Natsu, the demon before landing he torpedoes towards Zero legs and takes out his Onslaught and infuses hellfire into it. Before Zero knows it he stumbles to his knees, he looks down and sees a stream of blood flowing out both of his legs. He sees that huge chunks of flesh have been burned and cut out of his shins, he tries to get up but his legs give way to his massive upper body.

Natsu sees that his attacked worked, he makes his way to Zero who is now helpless trying to get up but can't. 'Damn I can't move and this dragon DNA isn't kicking in to heal these wounds fast enough but I know Onslaught's body is giving in to the injuries that I give him. I have to do that spell if I want to survive come on you son of a bitch come a little closer...' Thought Zero. He sees demon trying to maintain his composure but his body took a considerable amount of damage, he starts to vomit a huge amount of blood. Zero sees this and takes the opportunity to get rid of the demon once and for all. He sticks his arm out and greenish dark plasma magic start to appear. Natsu sees this and feels a huge amount of magic energy coming from Zero.

'D-damn what's he planning? My body hasn't fully calmed down yet, damn he's strong.' Thought Natsu picking himself up.

"Before my eyes history will come to an end and the Genenis of darkness will be ushered in. GENENIS ZERO!"

Zero blasts green darkness energy on their fingers to Natsu, as the energy covers the pink haired demon he sees that Zero summoned thousands of black phantoms, they start to strike him and claw at him to the point of them being engulfed completely by their sheer numbers. Natsu then is transported in a dark grayish void that is completely depleted of light and life. He also notices that he is floating in the nothingness, he starts to have a odd feeling like his spirit is fading away like the void is trying to consume him completely.

Outside the void with Zero is drops to the ground completely drain of magic and stamina. "*breaths in* *breaths out* I-I win punk, that technique is capable of erasing a person's soul and their very existence." Zero says as he lays on the ground breathing slowly but suddenly starts to move uncontrollably. "Ahhhhh" Zero yells as the pain catches up with him.

"D-Damn m-my injures are finally catching up with me, at least the flesh is closing up damn I need more of the serum so it can speed up the healing proc-"

"*CRACK!*

"N-no I-impossible" Zero says picking himself up, the spot where Zero's Genenis Zero spell made Natsu disappear starts to show a small crack similar how Natsu's tremor punch hits the air. The crack grows more and more until.

"*CRACK!'* *SHATTERS*" like a glass door shattering when in hits the floor Natsu appears managed to pierce through the void. Zero sees Natsu has sprout wings and has taken a more demonic and dragonic appears, his scales stand out more and his horns and teeth have become more carnivores.

"D-dragon force." Whispered Zero as Natsu charges at him.

"Demonic Eruption!" Natsu right arm made a giant fist construct of Chaos and Hellfire magic clotheslining a weaken and shocked Zero, the magical construct punched Zero so hard sending him through several rooms right in the lab that is holding Abraxas captive and where the fight initially started. Natsu follows right after Zero and sees the giant hybrid monstrosity of a man covered in a fountain of his own blood. Natsu could tell that he's alive but barely, he also notices that he's attack broke all of Zero's bones of his upper body from his skull to his rid cage, and puncturing several organs he can tell because some of his bones and organs are literally sticking out of his broken body.

"*Sighs* I need to get stronger that bastard is still alive, if I was stronger that attack would've obliterate him." Natsu grabs Zero's head and starts to pull it, a second later a cracking and gushing sound can be heard, Natsu literally ripped Zero's head off his body he picks up Zero's head and stares at it.

"He looks so terrified" the demon comments before crushing the head like a basketball. He burns the left over brain and bone, he turns to Abraxas who is still unconscious and still tied in the wires and attached to the machine that was draining his magic. Natsu turns off his dragon force, his wings seemed to sort of evaporate like water but not only that his scales and flame marks become it's usually shade of red and purple instead of the bright shade in was earlier with the dragon force, his horns and teeth went back to its normal shape it was before. Once he went back to his normal form he coughs up some blood, but that's from the battle with Zero.

' D-damn that Genenis Zero spell sure was hard to nullify I had to use dragon force and pump so much magic energy to simultaneously burn the void with my magic. Not to mention I couldn't use my dark magic seeing how he had DNA in him. I didn't know if he could've absorb it or not, I didn't want to take that chance.' Natsu said to himself as he wiped the blood from his lips, he turns to Abraxas who looks like he's gaining consciousness.

"Wh-where am- YOU SON OF A BITCH THE RUMORS WHERE TRUE THAT E.N.D IS ALIVE ILL KILL YOU AHHHHHHH!" Abraxas waking up makes his thoughts known as the first thing he sees the reincarnation one of his people greatest enemy, he started to squirm but Natsu through a chaos magic projectile at the dragon causing it yell in pain.

"It's pathetic the once most powerful race in the world are now test dummy for humans, truly pathetic." Natsu said smirking, he jumps and floats in front of the tied up dragon.

"Abraxas the purgatory dragon your magic energy is nearly gone. I can sense your life force fading away how about you tell me where Igneel is?" Asked Natsu smiling.

"I don't know and if I did know you'll be the last person to know. It's funny how you say that my race is pathetic, but at least my race never betrayed me. HAHAHAHAAHA-*gwuah*" Natsu thrust his hellfire infused Onslaught through his chest piercing the dragons heart killing him. Natsu takes a look at Abraxas body and notices that the dragon was smiling from the laughing he was doing before Natsu stabbed him.

"That's not funny." Says Natsu in a serious tone as he turns away but he flies away he turns back the Abraxas and spits on his face. He flies through the Bureau to exit the structure and while flying he notices the carnage he caused.

"And to think all this started just because I was bored. Now that's funny HAHAHAHAAHA!" The demonic child laughs as he exits the building, he turns to the building.

"Chaotic Hellfire Dragon roar!" Natsu lets out a huge infused wave a hellfire and chaos magic to what left of the building, as soon as the magic wave hit the structure it starts to collapse as the flames burn whatever is left. Natsu turns and flies to the cave where he left the demon girl named Sayla that he 'liberated'. He makes it to the cave to see Sayla standing in the entry of the cave with an amazed look on her face, Natsu lands in front of her.

"My name is Natsu Dragnologia." Natsu says as he take a sit on the wall of the cave's entry. Sayla look at Natsu for a second and tears start to flow.

"I-I'm Sayla, it's nice to meet you Natsu." Says the black haired Etherious girl to the pinkette with tears of joy flowing down her cheeks. She happy because she is now free from those people from the Bureau who were experimenting on her, she even more happy that the person who saved her is someone who shares her appears. Natsu nods at her and just as he was gonna to ask her some questions he completely knocks out, he may have won the fight and made out on his two feet but it didn't mean that he was 100% and all healed up, Sayla sees this and was about to panic but then saw Natsu breathing in and out.

"He looks beaten up, I guess I have to wait for my questions to be answered in the morning then." Says Sayla as he sits next to Natsu and dozes off the sleep too.