Nitori Shuichi is a boy who wants to become a girl. He transfers to a new elementary school, and there, meets Takatsuki Yoshino, a tall and attractive young girl. Coincidentally, Yoshino also dreams of becoming the opposite sex. She lets Shuichi in on a secret that she cross dresses from time to time and visits places far from home. Due to the fact that they share the same secret, they become close. The two are now in middle school. In the midst of a crowd full of new people, the two search for their own paths; all the while facing the troubles and concerns that come along with puberty.