Monthly Shōnen Magazine
is a Japanese manga artist who publishes works primarily for Kodansha. He made his debut with "Superfly" in Kodansha's Monthly Shōnen Magazine. He is best known for his manga "Drifting Net Cafe," "The Flowers of Evil" and "Happiness". His works have been adapted into many different media including television drama, anime, and live action film. In 2001, he won the Tetsuya Chiba Award.