Tachibana is a swimsuit idol, all the boys at school admire her, treat her like a celebrity, not like a friend. Tachibana feels a bit distant from everyone, so she tries to find a way to get closer and more sociable with her friends. When passing by a classroom, seeing a junior student cleaning alone, Tachibana immediately takes the initiative to help. Because she is wearing a short skirt, when she bends down, her panties are exposed, making the male student unable to take his eyes off her! Suddenly, Tachibana has an idea, she will let this male student fuck her so that the two can become friends! And from then on, Tachibana has many new friends. From two male students hiding in the closet to secretly take pictures of her changing clothes, a student skipping school to masturbate, a model student who studies well... All of them are invited by Tachibana and become her friends!