Anime Crossover: Transmigrating Through 999 Worlds at Once

He transmigrates into countless worlds at once. When his true self and his clones resonate, he gains a certain amount of power; if he kills a clone, he can seize all of its abilities.

And so begins a strange war that spreads across countless worlds.

Fairy Tail original: Are we seriously making our own people kill each other?

Demon Slayer female clone: You actually want to have sex with yourself?

Psyduck clone: Damn it, have you even considered how hard it is to be a duck?

Red clone: I'll kill every last one of you. Blame this world!

Bleach clone: Aizen, you might defeat one of me, but there will be tens of thousands more!

Dragon Ball clone: Everyone here is a little brother compared to me.

Planned worlds: Fairy Tail, Demon Slayer, Pokemon, Bleach, One Piece, Naruto, Yu Yu Hakusho, Hunter x Hunter, Red, My King...

As for High School DxD, To Love-Ru, Queen's Blade, and The Healer Who Was Banished from His Party... those might be possible too~

This novel and its characters are entirely fictional. Any resemblance to real people or events is purely coincidental. Do not imitate.