The twins Maria and Noel have always lived together and are very closely linked. When Maria decides to enter Morinomiya School because of the beautiful eyes of its basketball coach, Noel, who refuses to be separated from his sister, decides to enter the same establishment. Unfortunately, there are no spots left for boys. He thus decides to pass himself off as a girl! But school life is not easy when one must constantly play in a comedy! Especially when Noel rapidly falls in love with Miyu, a fellow classmate, while he himself is courted by another student.