Yuzuki Osaka. Female. 15 years old high school. Now living her life as a boy under a new name - Yuu Osaka. The first two weeks were quiet, and although Yuu felt detached, somehow she managed to blend in two weeks later. Although she expected a 'nice and proper' friendships, the occurrences two weeks later since she stepped foot into the school grounds were pretty ridiculous. Suddenly, she was friends with the principal's daughter, Hikari Tadashi; an accomplice of a troublemaker, Ikeda Sato; an enemy of a gang leader, Dojo; and teased by the school's heartthrob Kousuke Nakano.

Moreover, there was one thing she must do - she must keep her real identity hidden at all cost!