Anime Crossover: Starting with Saving the Unfulfilled from Demon Slayer

[Transmigration + Crossover + Multiple Heroines + Nearly Invincible]

After accidentally transmigrating, Lu Sheng travels through anime worlds filled with regrets, tearing apart the tragedies set in stone.

First stop: Demon Slayer.

Lu Sheng is reborn as the younger brother of Kagaya Ubuyashiki, the current leader of the Demon Slayer Corps, only to discover that he's unaffected by the curse.

And he can keep getting stronger just by basking in the sun?

Muzan, come bask in the sun with me and get stronger!

The early story takes place before the original.

There is a System, but it serves very little purpose, and is only there to enable transmigration.

Future worlds will include One Piece, Jujutsu Kaisen, and more...