Welcome to Nevaeh Academy!
The heroine, Rinka, who was caught in an accident on the first day that she was to enter high school, suddenly found herself on the premises of an unknown school.
This was Nevaeh Academy, a school for those whose souls were left behind after death.
In this school if you were a good student who followed the rules then, upon Graduation, you would be able to return and resume your life.
The heroine, having been informed about her death from a suspicious man wearing a rabbit head and thinking that this was all a dream, followed him to the school entrance ceremony.
Suddenly, a piercing explosion echoed from over there.
What started at the sign of that noise was the school war between those who defy the school's rules, the Deliquent Team, BAD APPLES, and members of the DISCIPLINARY COMMITTEE.
In the middle of that battle, the heroine meets a red-haired young man.
That young man faced her directly and asked a question."-- Do you want to live?"