Delinquent Funabashi Masaya, also known as Devil Ma-kun, a boy who has been repeatedly entangled and beaten up by thugs, perhaps due to his devilish face. When he enters high school, he intends to make a fresh start and lead a relaxed school life, but not only doesn't get approached when he is recruited for club activities, they avoid him at first sight. But then a female student asks him, “Would you like some tea?” and, he joins the Tea Ceremony Club hoping for a peaceful mind and life. Will he escape from a cycle of violence and master the path of goodness?