santa matsuri, senjougahara hitagi, bakemonogatari, kodansha, monogatari (series), bad id, bad pixiv id, 00s, 1girl, animal ears, between breasts, black thighhighs, blush, bra, breasts, cat ears, cat tail, female focus, hat, kneeling, lingerie, long hair, mouth hold, navel, nurse cap, panties, pink panties, purple eyes, purple hair, shoes, side-tie panties, solo, stethoscope, tail, thighhighs, underboob, underwear, underwear only, very long hair, wrist cuffs