Mitsuki Haruno (Tsuchiya Tao) is a new female high school student with a somewhat introverted personality. Mitsuki, who came to a brand new class, hopes to get along well with her classmates this time. However, in a series of accidents, Mitsuki's hope turned into a bubble. Asakura Nagashi (Kitamura Takumi), Wakamiya Kyousuke (Isomura Yuto), Kamiyama Aya (Ozeki Yuta) and Tada Ryuji (Sugino Haruko) are the four kings of the school's basketball department. In order to allow them to concentrate on training, the school has set a rule prohibiting their love. Coincidentally, these four boys are frequent customers of the store where Mitsuki works. As time goes by, Mitsuki and the four have forged a deep friendship. The nearly perfect boys in the minds of these four girls also reveal their simple, cute and kind side outside of school.