itou tatsuya, inu sakuya (nejikirio), izayoi sakuya, touhou, bad id, bad pixiv id, 1girl, animal ears, ball gag, bdsm, blush, bondage, bound, bound arms, bound legs, breast bondage, breasts, chain, collar, cuffs-to-collar, dog ears, dog tail, fang, female focus, frogtie, gag, gagged, human dog, kemonomimi mode, leash, lock, lying, maid, padlock, red eyes, rope, saliva, shibari, solo, tail, tears, thighhighs, wiffle gag