This world building/character writing is actually pretty ass. Why it isn't properly made clear if this MC still has his powers or knows/can use any of that magic he banters so much about? Considering how easily he got beaten up by those thugs it seems he's weak AF. Also what's up with this protagonist's common sense? Why the author made him be such an idiot loser, who doesn't by default think that he maybe shouldn't talk about the other world, or how he beat the demon king, especially when he's being in a job interview?? This is so stupid it's not even funny tbh.