This drama is adapted from Uchida Haruki's manga, reversing the identities of the male and female protagonists in the original work. It tells the story of Chiyomi and Minami who were childhood sweethearts who lived like brothers and sisters since childhood. However, one day, Chiyomi fell in love with Minami, her lover who she also admired, and suddenly she became 15The size of a centimeter's palm——What kind of love story will the two people involved in an unexpected situation write in the future...