Shiratori Nagisa, a singing idol with pink hair, constantly receives pressure from her father to recruit new students for their family's martial arts school. Desiring to live a normal life with free time, Nagisa cuts her hair and dresses up as a high school boy named "Ootori Nagisa." As she enrolls in a decrepit school, she falls in love with Nosaka Akira, the leader of a rival gang from another school. It turns out that Nosaka-kun is also a fan of Nagisa's Idol persona. To continue spending time together, Nagisa maintains her disguise. However, their fathers, who both run martial arts schools, along with martial artist animals and an up-and-coming idol, all conspire to make their lives as complicated as possible by competing for Nagisa's affection.