it's an isekai style manga about a guy who's one of four sage people and he's the lighting guy but they do a test thing and he has no talent so he reincarnates but the test result is the same but magic sucks in that era. also magic is in levels so he just throws out a level 10 spell that's named after himself at his asshole dad and brother to save his nice brother lmaoo
story is fine but holy shit the TL after chapter 84 is hot garbage. demonic scans just throws the raws into an ai and doesn't even proofread it before publishing so it's full of mistakes and parts are just. impossible to understand. what the hell is a manshin.