Aku No Hana. Kasuga Takao loves to read books, particularly Les Fleurs du Mal by Baudelaire. Saeki Nanako, a girl at his school, is his muse and his Venus and he admires her from a distance. One day in the classroom, he forgets his copy of Les Fleurs du Mal, and runs back to pick it up again. He not only notices his book in the classroom but also Saeki's gym outfit. He steals it on a wild impulse.
So everyone suspects that Saeki's uniform was stolen by "some pervert," and Kasuga is dying out of embarrassment and remorse. Additionally, the class's odd, scary, and friendless girl, Nakamura, saw him take the uniform. Rather than admitting it was him, she acknowledges the deviant spirit of his family and uses her intelligence to take control of his life. Would Kasuga be able to get closer to Saeki, given the intervention of Nakamura and his dark secret? How exactly does it plan to do with Nakamura?