Haruki Sato(♀) is a high school girl who was raised as a rich girl. In order to meet her benefactor and former boxer whom she admires, she cuts her hair, disguises herself as a man, and infiltrates an all-boys school! Her secret is revealed by chance, and she is forced to perform erotic acts... gradually awakening to the female sexuality. This is the debut work of the beautiful busty girl Haruki Sato, and you must see how she feels!