The child changes school to be close to his childhood. Erroneous identity and numerous love triangles arise. Atsushi Arizawa comes to High School Jougaouka to be close to Masami Shibata (Ma-Chan), who was his childhood. However, not knowing Azushi, Masami no longer works at school, and his brother Masapi is now a nurse. Azushi confuses Masaesha with Masami and comes to horror, because for him it seems that the personality of Masami made a turn of 180 degrees. Add to the fact that another for Atsuha, Kouji Inagaki is completely in love and constantly trying to kiss him, the life of Atsuha in Jougaoka "This is hell until they start thinking that perhaps the new ma-chan is not so bad and that perhaps you really like it like ma-chan now. While, of course, he does not recognize that Masapi is not Masami.