Star Na Ai, who belongs to the track and field club, and Airi Ruii were rivals who competed against each other in terms of abilities. One day, after losing a practice match, Ruii ends up exchanging her first kiss with Ai. Their distance suddenly closes, and they engage in intimate acts in the empty clubroom, during class, and throughout the school, spreading the scent of sexuality. They crawl on all fours, licking each other's private parts, and take videos of each other on their smartphones. They rub their moistened groins together, engaging in secret schoolgirl lesbian sex that no one can talk about.
