
Oooooohhhh!!!! Uzumaki is GOOD. Another you may enjoy is a series where there is a brother and sister, and the brother keeps "apologizing" to people (especially when his evil sister does stuff), or saying he "loves" them, but he is actually apologizing and professing his love to a demon that only he can see, causing the people to melt or warp or what not. It is a good series. I also like the Souchi series (about a kid that chews nails and curses people).

Youkai Kyoushitsu. Here is the link for it on this site: https://www.mangago.zone/read-manga/youkai_kyoushitsu/
Pages 11-12 of chapter 6 be channeling some Junji Itou vibes there. LOL