1girl, aqua_eyes, bikini, black_hair, blush, bow_hairband, breasts, feet_out_of_frame, hairband, holding, holding_innertube, hololive, innertube, kuma_no_bansoukou, looking_at_viewer, medium_breasts, navel, official_alternate_costume, official_alternate_hairstyle, oozora_subaru, oozora_subaru_(hololive_summer_2019), parted_lips, short_hair, simple_background, solo, string_bikini, striped, striped_bikini, surprised, swept_bangs, swimsuit, two-tone_bikini, virtual_youtuber, wet, white_background, yellow_bikini