Hana, a quiet and pretty schoolgirl, is dating her childhood friend, Kento. The two have yet to even kiss, so their relationship is pure. However, contrary to her appearance, Hana "likes the smell of older men," and finds joy in following the workers at the construction company that is Kento's house. One day, while in the construction company, Hana picks up some abandoned work clothes, smells them, and indulges in masturbation. She is caught by a worker returning home...