Based on a popular comic, this hilarious comedy follows the chaos, troubles and friendship at a boys’ boarding school after a girl-disguising-a-boy joins. Mizuki ASHIYA (Maki HORIKITA) has just come back to Japan from California where she was raised.
She fell in love with a hopeful high jump hero Izumi SANO (Shun OGURI), but he has quitted after an accident.
As she wants him to go back to the sport once again, she enters the same high school as a boy! With a short hair, flattened chest and lowered voice, she starts sharing the same room with Sano at the dorm.
Living in a dorm at a boys’ high school is hard enough; changing clothes, bathrooms, etc., but things get even more complicated when Shuichi NAKATSU (Toma IKUTA) has a fancy feeling about Mizuki while Sano notices Mizuki is actually a girl and falls in love with her but she doesn’t notice he knows!