1girl, ahoge, animal_ears, animal_hands, black_leotard, cat_ears, cat_paws, cat_tail, center_opening, cosplay, fake_animal_ears, fate/kaleid_liner_prisma_illya, fate_(series), illyasviel_von_einzbern, illyasviel_von_einzbern_(beast_style), illyasviel_von_einzbern_(beast_style)_(cosplay), illyasviel_von_einzbern_(cosplay), kneeling, leotard, long_hair, navel, onii-chan_wa_oshimai!, oyama_mahiro, senbei_(avocadochaya), solo, tail, thighhighs