Identical premise, Falling Star of Evolution on RoyalRoadL, though there he doesn't get the memories because of an explosion.
Been so long since I read Road to Slaying God, didn't realize someone had picked it up just couple months ago. Thanks for posting this thread NinjaEnvy
Yeah I liked this novel as well but he hasn't updated in a long while. Not the first time but he came back for like 1 or 2 chapters then disappeared again.