Right before Sun Wukong was to fuse the power of the Heavenly Dragons into Kaii's body, he quickly removed Samael's curse from Vali and Kaii. Vali went into another room to rest as Kuroka was called down to also support with her senjutsu.

Everyone else who was close to Issei had basically gone into a state of shock upstairs, as the 'operation' was happening in one of the rooms in the basement.

Kaii who was no longer in pain was sitting on an inclined chair with Tiamat, Diehauser, Kuroka and Bikou behind him all coating him with magic and senjutsu.

He sat there awkwardly and spoke to Sun Wukong who was channeling his ki into the two jewels in his hands.

"...Any time now."

Azazel scratched his head at Kaii's words. "What's gotten into you? Oh wait... don't tell me..."

Kaii looked at him with a serious face. "After this I'm gonna go brutally murder Hades and Pluto."

Everyone kind of sweat dropped after hearing that.

"My, my someone's angry-nyan." Kuroka says.

"One more thing." Sun Wukong says. "This will probably hurt... a lot."

"...Well that's nice to know." Kaii says as he rolls his eyes. "I just got stabbed in the damn stomach by an evil Maou with a dagger coated in the one and only dragon eater's blood... I'll be fine."

Sun Wukong shrugs nonchalantly as he makes the two jewels hover over Kaii and taps both. Beams of light, a red one from Ddraig's emerald jewel, and a white one from Albion's blue jewel shoot into Kaii's body, causing a burning sensation.

"No screaming this time?" Sun Wukong asks with a bitter old smile.

"Very funny." Kaii says as he endures the pain.

"So can you tell us what exactly happened?" Tiamat asked.

"Well it's kind of like this, me and Ise got on top of the hotel and found Katerea Leviathan and Creuserey along with Shalba Beelzebub. Ise successfully killed Shalba, but he used an arrow coated in Samael's blood and struck him in the arm... thus ending his life." Kaii said the last sentence with pain.

Azazel narrowed his eyes. "It's a fact that all three of them were killed, for them to be brought back to life is no joke. Was there anything suspicious about them? Any physical oddities or anything wrong with their eyes?"

Kaii shook his head as the jewels pumped a larger light into him. "They seemed just fine. That's what's bad, correct?"

"Yeah, this means we're dealing with a necromancer. Now this is a problem because races of the supernatural aside from Gods have a hard time using necromancy magic. But no God, even Hades would waste his time with that kind of magic. Only humans are known for necromancy. But another problem arises... there is in fact no human powerful enough to bring back to life three individuals at the level of Katerea, Creuserey and Shalba. Tiamat..." Azazel then looks at her.

"Don't be ridiculous, there's no way we're dealing with them. There's no way that they could have escaped. Not even one of them should have been able to get out."

"What are you two talking about?" Kaii asked the two.

Kuroka, Bikou and Sun Wukong were lost in thought with concentrating, however Diehauser was mysteriously quiet...

Azazel gave Kaii a stern expression. "Have you heard of Tartarus?"

"You mean in Hades' realm?"

"Yeah, this is not told to anyone and only the higher-ups of each faction is told about this... long ago, around the time of the last great war... a second truce was made."

"Second?"

"As you know, the first truce was when the three factions agreed to take down Ddraig and Albion, and with God of the Bible's help we sealed them into the Boosted Gear and Divine Dividing, respectively. But... we had to team up yet again. Except this time God of the Bible had to team up with the most powerful of the gods, Hades, Indra, Shiva, and Thor to seal 13 beings in the pits of Tartarus."

Tiamat and Diehauser quietly nodded for him to continue.

"...These 13 beings were known as demons. Before you ask anything, allow me to explain. As you know, Sirzechs and Ajuka belong to a rank of their own -Super Devils. There is also... a third Super Devil. But that's another story. Back to the point, being a Super Devil is not a power-up, more or less a power-down. Demons are known as the 'perfect' devils and are in almost every way better than devils. They belong to a class of their own and are the rivals of Gods. But the thing here is, since demons no longer exist, devils are considered to be the 'evolution' of them. But in reality demons are better, despite being the original. I'm not saying that they're particularly related, they're like cousins of devils."

"What are you trying to say?" Kaii asked with wide eyes.

"Since being a Super Devil is such a drastic step in power... it's a step backwards on the evolution tree. Think of it like this: devils can progress, and that would be going forward and further down the evolution tree, however the power-up known as being a 'Super Devil' is a step back on the evolution tree and is actually right outside being a 'demon'. So the three Super Devils in our world are backward progressing. It's impossible for them to be actual demons, but the power is near them."

"Continue please." Kaii says.

"As you've suspected by now, these 13 beings were demons and were the most vile and evil beings I've ever laid my eyes upon. Their strength was also indescribably frightening. The weakest one was equal to Maou level. The top two..."

Tiamat now began to speak over him. "The demons had ranks to them. There was number one through thirteen. Number one was so immensely powerful that he could potentially take the number one spot in the 'Top 10 Strongest Beings in the World' from Ophis -even at max power. However there was a number zero. As far as we know, this one could potentially be a myth, but they insisted that he or she existed, and was above even Ophis and number one. It was to the point where the Great Red actually almost got into a fight with him/her. And that's saying something considering he ignored the attacks from Ophis. Only two beings have ever posed that much a threat to him -number zero supposedly... and that beast."

"...666... the Trihexa." Kaii spoke extremely strangely as if he was in a trace for a short moment.

"?!"

Tiamat and Azazel were shocked to say the least that Kaii knew of this being.

"...H-H-How did you?!" Azazel stutters with his jaw dropped.

"I'm not sure, as soon as you mentioned it the name popped into my head." Kaii says.

Tiamat got over this coincidence quicker than Azazel did and glared at him to shut up.

"The point is that these demons were bad news. God of the Bible and the others used their full power to seal them within the pits of Tartarus after getting permission from Hades. Normally you'd think that Hades may be trying to unseal them, but not even he's stupid enough to do that. If they ever were to be released, the end of the world would truly ensue. As for number zero, it's more than likely a myth as this one was never found, and God of the Bible dismissed it as something to just rile us up."

Azazel then cleared his throat and continued. "The point of tell you all this, is that the only person in existence that could possibly revive people such as Katerea, Creuserey and Shalba is one of the 13 demons. The name is recorded in an evil book that not even Hades dares to touch. This book has it named as 'Tyrant'. It goes on to say, according to lore, that Tyrant is capable of bringing nearly anything back from the dead, and to manipulate it to do its bidding. It finally said that Tyrant once brought an entire army back from the dead and caused a massive war in the Celestial world where the Shinto Gods and Goddesses live."

Kaii then tried to argue in response. "But that can't be the case here considering the three of them clearly were in control of themselves."

"Well that is true, and then there's also the fact that if indeed one of them were to escape, they would without any hint of a doubt let the others out as well, and if that were to happen we would've heard by now. So I guess I'm just spouting nonsensical theories now, but it's good to know. But Kaii, try to imagine the state of the world if the dead came back to life now. The original Maou come into mind with me. What about you?"

Kaii thinks for a minute and goes silent. "I'd rather not say... if she were to be brought back..."

Azazel stops him there. "Hey, hey don't sweat it. I'm just killing some time here. What about you Tiamat?"

Tiamat looked down at the ground for a minute and whispered something.

"Oh, you said something about killing time. What for?" Kaii asks.

"Well..."

At that moment, Kuroka, Bikou and Sun Wukong's eyes open.

Sun Wukong didn't look that tired, but Kuroka and Bikou were panting now.

Kaii turned his head slightly around and smiles to them. "Thanks you two for doing this."

Bikou gives him a thumbs up while panting, while Kuroka smiles back with an ever-so small red tint on her face.

He then noticed the two jewels had become an emerald and blue needle respectively.

"...Wait..."

"-This." Sun Wukong finishes Azazel's sentence from before as he snaps his fingers and the two needles glow and drop down into Kaii's heart.

At that moment, Kaii screamed louder than humanly possible as the two needles became the size of large icicles and both went through his heart.

Everyone watched but then started to slowly freak out as they were not doing anything.

"Umm I don't think that's supposed to happen!" Bikou yells.

"What the hell?!" Azazel yells as Okuma speaks.

{The security system on the Sacred Gear is trying to reject this power! In response to that the Sacred Gear is undoing the seal on me automatically! He's about to enter Breakdown the Beast!}

"HOW?! IT'S AN ARTIFICIAL SACRED GEAR! THERE'S NO WAY IT MADE IT'S OWN SECURITY MEASURES WITHOUT IT BEING SOMEONE LIKE GOD!" Azazel screamed as he examined Kaii who looked like he was nearly dead.

"If he enters Breakdown the Beast one more time his life force will completely disappear!" Diehauser says as he tries to use his magic to stop it from happening.

Kaii felt his consciousness slip as he looked at two large needles in his damn chest.

'I wonder who's gonna bring me back to life this time...' Was the last thing he thought as he drifted.


The Void

Kaii suddenly opened his eyes as he looked around and saw only black, except it was like darkness was spreading, and ravaging this empty void. The darkness looked as if it was consuming the entire place.

He looked around and froze as he saw what looked to be a large throne floating in the air made out of black ice.

He tried to look around again, but heard something like a girl giggling. So he turns around again and sees a girl with a ridiculous body basically had it all and a perfect hourglass figure, but for some reason looked almost a year younger than him sitting on the large throne with a mischievous smile. She had pale pink hair what was flowing and wore a strange black sleeveless coat that was fashioned like a gothic lolita, along with black stockings, black boots and black sleeves that covered her arms from the wrist up to the shoulder.

She waves her index finger as if talking to a child. "Nu-uh, now that isn't going to work." She says in a childish voice.

As she says that, the darkness in the area completely froze as if time stopped, and he notice a red crack on his heart. That crack began to glow.

She then smiles again. "Now that's not right! You're not supposed to die!"

After she says that, she puts up her index finger and the darkness resumed, actually it picked up in speed greatly.

Kaii was dumbfounded at this point so he just kept his trap shut for now.

"-Let's play a game, okay? Hide and seek." She says as she jumps up and disappears into a black-red vortex.

Kaii just sighs and wonders how he gets himself into these situations and begins his journey through the darkness. He was a little hesitant at first when going through it, but noticed that he was able to traverse it easily.

After about 5 minutes, he found her standing in the center of all the darkness. She formed a sly smile as she noticed he traversed it easily. However, something was off as she no longer had a 'well developed' body, she now looked like a girl her age, about 16. Kaii noticed this and kept his guard up. In his history of life, only incredibly over-powered beings could change their body this easily.

"So... who are you? What are you doing here?" He asks.

She giggled in response and played with the darkness as it spun around her.

"You're able to actually get through here? Wow you really are weird. But I think that's enough for today, hot stuff. It's time for you to go." She then waves her index finger and Kaii vanishes.

She walks over to where he was standing and made a creepy smile.

"The two Heavenly Dragons huh? He'll become the 'savior'? Would you listen to this nonsense... ugh he gets chosen by that brat and it goes straight to his head!"

After that, the darkness completely swallowed everything, and all you could hear was a very creepy giggle.


The Underworld

Kaii woke up in one of the rooms of the Gremory residence and yawned. He noticed some people outside of his room talking, Azazel and Sun Wukong.

He turned to his side and nearly jumped as he noticed a familiar girl with a curvaceous body sleeping on the side of this ridiculously oversized bed.

"Eh?" He was confused so he slowly crawled over to her, as his body felt weak. He couldn't tell if it was her because this person had black hair, but it sounded just like her.

"Pandora?" He whispered.

"Uhh..." She slowly rolled over and looked at him. "Hello Kaii-kun."

He had an awkward face on. "Your hair is black, you know?"

She nodded in response then frowned. "You don't like it?"

"N-No it's not that, it's just... unexpected? Oh screw it."

"I heard what happened, are you okay?"

"-! Now that you mention it, oh boy that was one insane dream..." He then slowly rolls out of bed and froze with his jaw dropped as he looked into a mirror.

His once blood red eyes were gone, replaced with a heterochromic pair. His right eye was emerald, and his left eye was blue. His pupils were also now slit like a dragon's would be, and noticed his canine teeth were slightly sharp like a dragon too. It was all topped off by a small scar that went across his nose now.

"WHAT HAPPENED TO ME?!"

As he yelled, Azazel and Sun Wukong realized he was up and walked in.

"Well for the umpteenth time you almost died, but when you passed out the Sacred Gear turned off the security system and everything went as planned." Azazel said as he scratched his head.

"U-Uh, thank you two." Kaii says as he bows his head to his sensei and Sun Wukong.

"Hey, don't mention it kid." Sun Wukong says as he walks out of the room. "Just take it easy for a few days and you'll be fine. Haha, I can't wait to see what kind of power you'll unlock now."

After that he leaves the room. Azazel walks over to Kaii and puts a hand on his shoulder.

"-I'm truly a terrible man... a terrible sensei. I couldn't protect Shuri, Akeno's wife... I couldn't protect you from Loki. I couldn't protect Ise from Shalba... which is why I'm stepping down as leader of the Grigori. Effective immediately, Shemhazai is the new leader."

"Why?! You did your best!" Kaii protested.

"You call this doing my best?! It's my job to throw my life down to protect my comrades no matter what! You kids understand that concept better than anyone!"

Kaii throws Azazel's arm off his shoulder and turns away. "...It's my fault that Ise is dead. You don't know what happened. It was my recklessness. I let Creuserey had a 'free shot' in order to 'make it interesting'. Had I not been poisoned, I could have beat them before anything happened. And now look what's happened because of it! Not only is my friend dead, but now countless people are dying..."

He throws open the curtains and sees the large monsters made by Leonardo attacking the Underworld far away in the distance, by the minute killing brave devils who are throwing their lives away to attempt to stop them.

Kaii puts his forehead on the window and talks quietly to Azazel and Pandora.

"I promised myself that after that day... in which my father and brother murdered my mother and sister in cold blood along with the entire Valefor house, that I'd never be responsible for another death."

"-! Don't tell me you blame yourself for that?!" Azazel yells to him. "You were a young child... what could possibly have done?"

Kaii turned to him and had a cold glare. "What do you know? You didn't see your family slaughtered by the two people you looked up to! Only for you to find out that your mother was alive this whole time in Purgatory of all places! Seriously, I'm sick of it! Why the hell did it have to be me?! I don't even want any of this! My whole life it seems I just went along with the flow, but now I question why I am, because it seems like wherever I go death is just behind me! With my mom! With my sister! 3 days after you, Baraqiel and I went to visit Shuri, she died! 6 months after being friends with Ise he's now dead too! Who's next?"

Azazel's eyes were wide. He's noticed how Kaii never really got overly close to anyone, strangely enough the same went for the girls who liked him, and then it hit him like a train. He whispered, "So that's why you shut them out... you're afraid they'll meet the inevitable."

Pandora looked pretty confused and looked at Kaii who was facing the window.

Azazel crossed his arms and smiled, and began to leave the room as she noticed tears running down Kaii's face.

"You know, I'd say your mom would be proud of you now. But you should really cut the tears, that's no way to act around a woman." Azazel says as he leaves the room.

He walks out to the hallway, as his smile disappears. He notices Rossweisse appear from a magic circle, returning from Valhalla.

"Eh? What's going on?" Rossweisse asks.

Azazel ignores her and walks away.

She wanders into Kaii's room and was shocked to see Kaii actually showing emotion like that.

"Are you okay?" She asks, but Pandora grabs her shoulder softly and shakes her head.

"Some things happened... sit down. I'll tell you everything."

After explaining it for about five minutes, Rossweisse looked devastated.

"No, no that can't be..." She says.

Kaii no longer had tears, but a face of determination, as he turned around to them.

"It can be. And it is. I'm done crying, I'm done whining. It's time to take revenge."

"It's about time." A voice says.

The girls turn around to see Vali leaning up against the door with a smirk.

"Ready to kill the God of Death?" He asks.

Kaii clenched his fist and narrowed his eyes. "Let's do this."