Blackstone Code - Chapter 272:

There are two gods in the world, one lives in people's hearts and is dead. The other lives in reality and is alive.He is a person, he is named God. Yes, he is the one being talked about.He has returned from Hell.

[Regression: 31 times][Possession: 17 times][Reincarnation: 7 times]Kang Hanbit endured 55 cycles of regression and reincarnation, dragged to the brink by the Goddess.Just before his 56th journey, he gets sent back to reality, only to find his life intertwined with a game called the “Record Project.”But wait—this game’s world is identical to the other world?The 56th journey, which had yet to begin, now continues in the form of a game.

A human from Earth is thrust into the [Hunter x Hunter] world, becoming the Zoldyck family’s defiant, red-eyed prodigy. They call me a genius and the rightful heir, but I say that’s Killua’s burden to bear.Armed with crimson eyes, and a subtle yet powerful system, I’ll rewrite destiny, upend the world, and embrace the chaos with a wicked grin.

Previously one of the ten greatest Martial Emperor, Gu Feiyang somehow died near the mountains of Heaven Wave.

Fifteen years later, Gu Feiyang crossed through the cycle of rebirth. He was back! But this time, he was in the body of Li Yunxiao. Since then, Li Yunxiao started a treacherous journey. The world is in turmoil once more!

- Description from Novelupdates