totokichi, mizutani eri, idolmaster, idolmaster dearly stars, bad id, bad pixiv id, 00s, 1girl, animal ears, animal hands, bell, blue eyes, blue hair, blush, breasts, cat ears, cat paws, cat tail, collar, female focus, gloves, hair ornament, hairclip, jingle bell, matching hair/eyes, neck bell, one-piece swimsuit, one eye closed, paw gloves, school swimsuit, short hair, small breasts, solo, swimsuit, tail, thighhighs, wink