Sae Iwata is a slightly tougher-than-average girl. Her first love, Koki Kamishiro, was once a delicate and fragile boy, but now, in their third year of junior high, he has grown into a cool and popular young man. Although they have drifted apart, her feelings remain unchanged. When they are paired up to help prepare for the sports festival, Sae's long-hidden first love begins to stir once more.