Kawahara Koume is a female high school student and she has feelings for Osugi Kenta, a sincere, diligent, and polite young man. He's also popular with female students. Meanwhile, Kawahara Koume's father is Kawahara Kyoichiro. Kawahara Koume's relationship with her father is poor. One day, Kawahara Koume and her father Kyoichiro get involved in an incident and they end up switching bodies. They both struggle to live in the bodies of each other, but they believe they will return to their original bodies. During this time, Osugi Kenta, who is unaware of Kawahara Koume's unusual circumstances, gets attracted to her, but Kawahara Kyoichiro doesn’t want his daughter to have a romantic relationship with Osugi Kenta.