1girl, akai_haato, akai_haato_(hololive_summer_2019), arm_garter, arms_up, bikini, bikini_skirt, black_bikini, blonde_hair, blue_eyes, blue_sky, breasts, cleavage, day, hair_bun, halterneck, hololive, keigu_owari, large_breasts, long_hair, navel, official_alternate_costume, official_alternate_hairstyle, open_mouth, red_bikini, single_side_bun, sky, smile, solo, swimsuit, very_long_hair, virtual_youtuber