Yûki Kedôin

A teenage boy is a virgin at high school. He has never had a girlfriend so females are a mystery to him. He focuses on his courses, male friends, and club activities instead. When a new girl transfers to his new school he, like every other boy, falls for her. They get to know each other.

High school boys and girls are dating. Given her looks, thin body, and hair she is popular at school. There is a cheerleader who used to be the most popular girl and is not happy to be runner-up. She wants her popularity back. She tries to trick the other girl. The president of the students' union joined the fight.