So I got this watching an anime called Danganropa The Animation.
A mystery school was opening up a first batch students of the year. Only 20 students are accepted in this schools. Everything was way more different than usual. Until one day, a student was killed and it was later revealed they had to join the game, find out the criminal and punish them. Don't get caught, don't get killed too.
Extras:
+ mystery, horror, psycho (original plot) adding humours and romance is good too
+ could be an apply fic or simple
+ plot twist:
- it turns out to be a virtual game at the end
- all of the students aren't dead. They all wanted to see who is the smartest amongst them.
[OPEN]PM me if u wanted this plot ^^