"Aku no Hana," also known as "The Flowers of Evil," is a Japanese manga series written and illustrated by Shūzō Oshimi. It was serialized from 2009 to 2014 and explores themes of adolescence, desire, and the darker aspects of human nature. The story follows Takao Kasuga, a middle school student who becomes infatuated with a classmate, Nanako Saeki, and is drawn into a complex relationship with another student, Sawa Nakamura. The manga is notable for its unique art style and psychological depth, delving into the struggles of youth and the consequences of one's actions. It has been adapted into an anime series and a live-action film, further expanding its reach and impact within the shōnen genre.