The first few chapters were interesting, but then it unfortunately got ridiculously bad very quick. Also of note is the EXTREMELY bad translations. You ever see that meme about how godzilla got a stroke trying to read it and died? Applies to most of the chapters alas. That doesn't necessarily affect how good or bad the story is of course, but it certainly affects your enjoyment of the series.

As for how the story fell off, it started interesting, but by a few chapters in it's gone from school dealing with a bully and prejudice to terrorists attacking a hotel, teleportation, god-powerful-brocon-sister smiting someone from a country away, zombies, conspiracy theories, and then a girl transforms into a naked horse-head man, after inviting him to fly illegally over the ocean to the demon continent, because reasons.

... are you lost? Good, that's how all of us feel. The story makes no sense, with no continuity between scenes, and the MC is so dense god-empowered weapons break on his skin. Literally. Not figuratively, literally. Also, nothing in the world is explained, and none of it makes sense. For example, his dad is a hero? And he inherited his looks, which makes him also a hero (?) but he can't use magic (?) which is proof he's a hero (?) ....?.....?
😕? Doesn't help that the MC, while seemingly a decent human being, is cardboard boring. Also, his reactions to everything, are weird. Someone attacks him with a sword? 'Oh be careful, someone other than me could be hurt.' and 'Oh no, this guy is chuuni!'

It's a shame, because the start was interesting, and now it's utter trash.