On the day of his high school entrance ceremony, Taiyo falls in love at first sight with Yumi, who becomes his classmate. Breaking his promise to his brother to join the baseball club, he joins the soccer club with Ichiro, where Yumi becomes the manager. Taiyo tries everything to get Yumi's attention, but her heart is already with Taiyo. With their feelings for each other now mutual, and their friends Ichiro, Makoto, Sayaka, and Seiko joining them, a lively and fun high school life begins for the two.