Kinda forgot the title, it's an op manhwa where the mc went back to the past where the dis...

Kinda forgot the title, it's an op manhwa where the mc went back to the past where the disaster happened i think. I think it's an apocalypse because they are in the modern world. There's a few characters i remember, it's the fluffy guy like creature who worked as a live streamer to the gods. The mc have a companion who is a child and a few other adults that I can't remember well. Then he made a deal with a guy that he can survive from the serpent i think. The guy he made a deal with knows the future too cuz he kept dying and coming back to the past
Oh and that guy who he made a deal with have a student or servant i think who is very skilled with the katana.