high school survival horror recs

school bus graveyard
dead life

I rec the OG survival manga https://www.mangago.me/read-manga/drifting_classroom/ if you can look past the old artstyle and the fact that they're elementary students thinking like high schoolers, this has good existential horror imo.

These are pretty good too, not necessarily high school tho
https://www.mangago.me/read-manga/shokuryou_jinrui/
https://www.mangago.me/read-manga/suicide_island/
https://www.mangago.me/read-manga/apocalypse_no_toride/
https://www.mangago.me/read-manga/tomodachi_game/
https://www.mangago.me/read-manga/ajin/
And ofc 44th Period author's other work, Memorial

THANK YOU!! I LOVE MEMORIAL TOO