1girl, d, ass, atatatamu, bare_shoulders, black_wings, blue_archive, blunt_bangs, breasts, casual_one-piece_swimsuit, dutch_angle, feet_out_of_frame, from_behind, grey_hair, hair_bun, halo, haruna_(blue_archive), haruna_(swimsuit)_(blue_archive), large_breasts, looking_at_viewer, looking_back, ocean, official_alternate_costume, one-piece_swimsuit, open_mouth, outdoors, red_eyes, see-through, short_hair, single_hair_bun, single_wing, smile, solo, standing, swimsuit, thighs, water, white_one-piece_swimsuit, wings