1girl, ahoge, ass, ass_support, azur_lane, bare_arms, bare_back, bare_shoulders, bikini, black_hair, blonde_hair, blue_sky, breasts, closed_mouth, cowboy_shot, day, from_behind, gold_bikini, halterneck, hands_on_own_ass, harbin_(azur_lane), harbin_(union_between_sea_and_sky)_(azur_lane), large_breasts, long_hair, looking_at_viewer, looking_back, median_furrow, multicolored_hair, ocean, official_alternate_costume, outdoors, qing_wu, red_ribbon, ribbon, sideboob, sky, smile, solo, streaked_hair, string_bikini, swimsuit, two-tone_hair, very_long_hair, water