1girl, aqua_eyes, aqua_nails, ass, bikini, black_bikini, black_horns, blonde_hair, blurry, blurry_background, blurry_foreground, blush, breasts, cellphone, chair, closed_mouth, collarbone, criss-cross_halter, demon_girl, demon_horns, demon_tail, depth_of_field, e-wing_(ewingillustrate), eyelashes, feet_out_of_frame, halterneck, hand_up, holding, hololive, horn_ornament, horn_ring, horns, large_breasts, lens_flare, long_hair, looking_at_viewer, lounge_chair, lying, nail_polish, night, night_sky, official_alternate_costume, on_side, palm_tree, phone, poolside, shadow, side-tie_bikini_bottom, single_sidelock, sky, smartphone, smile, solo, string_bikini, swept_bangs, swimsuit, tail, thighs, tree, virtual_youtuber, water, yuzuki_choco, yuzuki_choco_(hololive_summer_2019)