it’s a transmigration novel, and i vaguely remember this arc where the mc is in a zombie apocalypse. the ML is the zombie emperor while the MC is OP as well. at the end of the arc, the MC and ML merge the zombie and human existence together ((?) i’m not too sure about the end of the arc)
Hmm, was it maybe quick transmigration? Bc this sounds a lot like arc 8 of Who Touched My Tail!? ML hid his identity and joined the ability user crew of MC for a while, if that rings any bells
Yeah, I also think that it's Who Touched My Tail. Everything matches up, unless you don't mean world hopping when you mention transmigration.