Tsubaki Fuyukawa, who is painfully shy and has social phobia, wants to change herself after entering high school, so she volunteers to become class representative. However, the position of vice class representative is raffled, and Yuhki Tenma is chosen for it, the guy who was rumored to be the No.1 yankii (punk) on campus as soon as he entered high school. Yuhki suddenly tries to intimidate Tsubaki by telling her, "Don't cause me any trouble," but actually, he turns out to be a kind boy who can’t ignore anyone in trouble. An innocent, school love story where the two students gradually get drawn to each other!