Shoujo

Hey mate I'm gonna live in this comment. ...... sry for disapointing you

https://www.mangago.zone/read-manga/sachiiro_no_one_room/

https://www.mangago.zone/read-manga/secret_alliance/

Thank you but alas I’ve already read both;-; Scarlet-san if you like this genre another good one would be “340 Days”

https://www.mangago.zone/read-manga/head_over_heels/
Nobody is in their right mind in this one...

Lmaoaoao I’ve been pending this one, looks like it’s about time I read this. “Perfect Mine” also seems similar but reversed roles uno

try digging through, they aren't exactly psychotic, more sociopath, and obsessive
https://www.mangago.zone/home/mangalist/1090462/

https://www.mangago.zone/home/mangalist/1038439/

https://www.mangago.zone/home/mangalist/927142/