This drama is adapted from the manga of the same name. It tells the story of Ayaka who likes Hiroko, a senior from the same unit, but she is ignored every time she shows her affection to him. On the other hand, Hiroko, the senior whom everyone admires, is actually a womanizer, and Ayaka's active approach makes her heart beat fast. The two people mistakenly think that each other is heterosexual, which leads to a bigger misunderstanding...