zatou, tenruu, shintaisou, game cg, 00s, 1girl, ass, assisted exposure, bdsm, bent over, blue eyes, blue hair, bondage, bound, braid, braided ponytail, clothes lift, female focus, gym storeroom, gymnastics, long hair, looking back, matching hair/eyes, no pants, open mouth, panties, pleated skirt, school uniform, serafuku, skirt, skirt lift, solo, striped clothes, striped panties, underwear, vaulting horse