Unsuccessful manga artist Rikka worries about her inability to draw attractive men. The reason is that a childhood trauma has left her afraid of men. "I really want to get my series published soon...!" Faced with a crisis as a manga artist, she decides to learn martial arts (kickboxing) in order to regain her fear of men. While learning martial arts from her coach at the gym, Goromaru, she meets him and falls in love with his clumsy kindness...!?