mendou saya, kawashiro nitori, touhou, bad id, bad pixiv id, 1girl, armpits, backpack, bag, bdsm, blue eyes, blue hair, bondage, boots, bound, crotch rope, cucumber, female focus, gag, gagged, hair bobbles, hair ornament, hat, key, matching hair/eyes, one-piece swimsuit, peeing, peeing self, pussy juice, randoseru, rope, school swimsuit, sex toy, shibari, shibari over clothes, short hair, solo, spread legs, sweat, swimsuit, tears, trembling, twintails, two side up, vibrator, wrench