1girl, arms_under_breasts, bikini, blue_eyes, blush, breasts, brown_hair, covering_chest, covering_privates, embarrassed, groin, hololive, k-go, looking_at_viewer, lowleg, lowleg_bikini, medium_breasts, messy_hair, narrow_waist, navel, official_alternate_costume, oozora_subaru, oozora_subaru_(hololive_summer_2019), open_mouth, short_hair, side-tie_bikini_bottom, solo, stomach, string_bikini, striped, striped_bikini, swimsuit, untied_bikini, vertical_stripes, virtual_youtuber, wardrobe_malfunction, yellow_bikini