1girl, alternate_costume, back, bikini, black_bikini, blue_eyes, blue_hair, blue_nails, blush, breasts, from_behind, glint, hair_ornament, hair_ribbon, halterneck, hand_up, hololive, hoshimachi_suisei, looking_at_viewer, looking_back, medium_hair, nail_polish, night, night_sky, outdoors, parted_lips, pool, ribbon, side_ponytail, sidelocks, sky, small_breasts, solo, star_(sky), star_(symbol), star_hair_ornament, star_in_eye, star_trail, swimsuit, symbol_in_eye, virtual_youtuber, wading, water, wavy_hair, wet, wet_hair, yamamoto_(ymmt_is_sexy)