Oh man looking at all other reviews made at the early stages of the manga is pretty funny. Just like what the other reviewers mentioned, the manga is a psychological horror with a twist at the beginning, but man it gets weird as fuck as it goes on. I don't want to spoil too much, but if you caught up to the newest chapters, you'd realize this mangaka really couldn't take the story seriously. Changing genre and theme every 10 chapters or so. I'd even argue that the manga doesn't have a theme at all. One second you have bullying horror, then you have some yandererom-com, and now you have shonen battle manga with fans making tier lists of how op characters are.

But yeah, it's pretty fun. Filled with dark humor, nice action scenes, and pretty solid shonen-style character writing. But whatever it is, it is not what the description suggests.