1girl, animal_ear_fluff, animal_ears, armpits, barefoot, black_hair, breasts, cup, foot_out_of_frame, hair_between_eyes, hand_fan, holding, holding_cup, holding_fan, hololive, izumi_sai, legs, long_hair, looking_at_viewer, lying, medium_breasts, miofa_(ookami_mio), multicolored_hair, naked_towel, on_back, onsen, ookami_mio, red_hair, sidelocks, solo, streaked_hair, tail, towel, virtual_youtuber, wolf_ears, wolf_girl, wolf_tail, yellow_eyes