milkshakework, commentary, highres, 1girl, :d, arched_bangs, bare_arms, bare_shoulders, bikini, black_bikini, black_headwear, blush, breasts, brown_eyes, criss-cross_halter, day, frilled_bikini, frills, grey_hair, hairband, halterneck, hand_up, hat, long_hair, looking_at_viewer, navel, open_mouth, outdoors, pentagram, shallow_water, sitting, small_breasts, smile, solo, stomach, swimsuit, tilted_headwear, v, very_long_hair, virtual_youtuber, wading_pool, water, witch_hat, murasaki_shion, murasaki_shion_(hololive_summer_2019), hololive, year_2021, 