Conflicts between deities. {JJK OC X Chained soldiers.}

Hi, welcome to ... this.
As the first sorcerer fought the final boss of life, he died, but he came back, thought alot later than his era. He will need to adapt to this world and over come the challenges that was setted up for him in his era.
But would he lose-
"Nah, I'd adapt."
Chained soldiers is by Takahiro {I believe}