Kuroi Misa, a girl with Satanic powers, mysteriously appears in various high schools. Carrying a dagger and a heavy leather bag, she uses her powers to eliminate the evil forces that thrive on deadly sins of the human race. Her ultimate aim is to cleanse the earth and rebuild her broken family.

A young school counselor steps into a prestigious girls' academy, only to uncover a hidden world of harassment, manipulation, and forbidden desire that the institution is desperate to keep quiet. Case by case, the girls she's there to help pull her deeper into the darkness behind the school's polished walls, and closer to a truth that will shatter everything she thought she understood about them, and herself.

Etsuko – a typical Japanese high school student, who's unlucky in love, an academic failure, and plain bored with life. That's until one day, the view of a boat gliding gracefully in the sea inspires her to take up the oar. Since she's rejected by her school's all-male rowing team, she decides to form her own all-women team. Nothing will ever be the same again.

The story takes place in an unnamed Japanese city, and follows five students at Shinyo Academy as they try to piece together the puzzle of a new drug and recent disappearances among the student populace. While the teachers believe them to only be runaways, the female students whisper among themselves about the urban legend Boogiepop, who is said to be a Shinigami.

Kikujiro schemes to steal Shooting Star, a renowned race horse, and enter him into top prize horse race, but things don't go to plan.