please help

err could someone help me find this action manhwa? From what I can remember,
This guy wanted to be human and had been fighting multiple for a long time then a really strong ass human almost kills him but then he doesn't die bc he becomes human anyways idk remember what happens afterwards but he does a bunch of things like help his neighbors bc they asked him on purpose so they can teach him sumn kind of lesson or something and he goes into dungeons I think? I just remembered the beginning and that's it