After a rigorous training session, two petite gymnasts, Kanno Hina and her coach, Taku Yoshimura, find themselves alone in the locker room. Kanno, her small tits still perky under her sports bra, and her perfect ass barely covered by her tight shorts, can't resist the temptation to touch herself, her fingers inching towards her wet pussy. Caught in the act by her coach, they share a moment of awkwardness before he joins her, their mutual attraction undeniable. They move to the nearby bathtub, their bodies entwined as they explore each other's petite frames, their lust growing with each touch.