Kimetsu Academy is a school for troubled children. But this vague description barely scratches the surface of the truth that hides within. A popular group of students are known for their history with heinous crimes. Interestingly, half of them happen to be in your class. Are you one of them? Perhaps. No one would know either way. You've made sure your records are clean. ( gender neutral reader ) (written in 2nd person) (minimal usage of '(y/n)')

A boy you who really like demon slayer just read the book k

This is an au where the demons are mermans and mermaids, this is an xmale reader story, so don't comment anything like "I'm a female tho." etc. And the people from the demon slayer corps are staff members.