Diligent and methodical honor student Eiichirou Maruo decides to exercise more during the little free time he has available because he is worried about his health. For this reason, after seeing a flyer, he joins the Southern Tennis Club at the beginning of his freshman year. During his free trial at the club, he meets Natsu Takasaki, another first year student, who is determined on becoming a professional tennis player due to her love for the sport. In contrast, Eiichirou's study-oriented lif (myanimelist.net)