2girls, blue_hair, breasts, cleavage, hair_bun, hand_on_own_chin, hololive, kashiba_aira, large_breasts, long_hair, looking_at_viewer, minato_aqua, moon, multicolored_hair, multiple_girls, murasaki_shion, naked_towel, night, onsen, open_mouth, partially_submerged, purple_hair, single_hair_bun, sitting, small_breasts, smile, streaked_hair, towel, virtual_youtuber, white_hair