Keitarou Itsuki has a kind and considerate personality, yet his intimidating gaze keeps others at bay. His attempt to confess his feelings to Aoi Tokujira comes to a halt when she flatly rejects him, blaming his piercing eyes. Seeking guidance from his older sister, she offers to help him with a complete makeover. However, the results are surprising as she turns him into a girl!
In his newly transformed state, Keitarou must return home, and it is there that he stumbles upon Aoi, who is being harassed by a group of boys from their school. Rushing to her aid, she doesn't recognize him and confesses her fear of men - a secret she's held for some time. Believing Keitarou to be a boyish girl, Aoi enlists his help in overcoming her fear.