This is the story where Urahara Kisuke died after Nel failed to save him inside Askin's Gift Ball Delux and reincarnated in the world of DxD.I am not sure if I can capture Urahara's character properly so I apologize in advance if you are not satisfied.Also, English is not my native language.I don't own any of the characters from the canon.

[System is assimilating Earth with the rest of the Vast Universe.]
[A Trial Program is needed for efficient assimilation and for that data needs to be recorded from 1111 individuals with Higher Potential Innate Abilities from the assimilating Planet.]
[This Trial Program was further divided into 3 Sub Programs namely, ALPHA Program, BETA Program and GAMMA Program.]
[Congratulations! You are one of the 11 Chosen individuals among 7.8 billion for the ALPHA Program.]
[As a Chosen member among 11 individuals of Alpha Program you will be one of the first to start the Trial Program.]
[When the Trial Program ends, the assimilation with Earth begins.]
[Survive, overcome danger and grow stronger. All the Best.]

Su Xiao is a cold-blooded young adult who's seeking vengeance for the death of his family, yet things ended up badly for him.
As he was taking his last breaths, he heard a voice calling him from dimensions, it was a strange system reaching him, asking him if he wanted to be saved, to be Reincarnated.
He just needed to accept a contract, Su Xiao didn't have any choice but to do so, but he didn't know what he signed up for!!
Travelling through worlds, doing extremely dangerous missions, collecting special items, levelling up, and even killing Protagonists...
But Su Xiao wasn't any ordinary Contractor, Su Xiao was a Hunter!
The MC crosses over to: One Piece, Tokyo Ghoul, Naruto, Fullmetal Alchemist, Attack on Titans... and Author's Original Worlds...

Living things really are ignorant a the greed to obtain the key to knowledge and the fundamentals of energy overpowers them.
Little do they know that knowledge is full of lies and energy is the root of destruction.
Us, mages, have mastered travelling through space and time. We are invincible, we can turn worlds into dust and you, mere ants, will be wiped out with no trace.
-Mage Adam An A.I.(Artificial Intelligence) gets reincarnated into a world where he becomes a mage.

aI thinka| my boyfriend is trying to kill me,a Lin Sanjiu muttered.As she thought about that rich, handsome, and gentle boyfriend of hers, she could not help but tremble all over.At the present, someone close to her had personally raised the curtains to an apocalyptic hell, and slowly, it was creeping up to her.a-What if earth devolved into a apocalyptic hellhole? What if you found out you not only have to survive just one apocalyptic event but have to struggle through multiple worlds with different end-world scenarios? And you get to meet more superpowered crazies than you can imagine!Presenting the worst nightmare that your weird doomsday prepper neighbour with a bunker full of canned beans could have, Doomsday Wonderland is a novel filled with subverted tropes, non-OP characters and a female friendly label which offends all politically correct fanatics.As aluckya humans evolved to posthumans with abilities to adapt to the New World or mutate into disgusting duoluozhongs to survive, follow Lin Sanjiu as she struggle through the multiple challenges to just live one more daya| and make sense of this New World that will no longer be the same.