1girl, blue_archive, blush, braid, breasts, casual_one-piece_swimsuit, cleavage, covered_navel, demon_wings, grey_hair, hair_bun, halo, hand_on_own_face, haruna_(blue_archive), haruna_(swimsuit)_(blue_archive), heart, looking_at_viewer, medium_breasts, official_alternate_costume, one-piece_swimsuit, red_eyes, red_nails, sasai_nakoto, single_braid, single_hair_bun, smile, solo, swimsuit, white_one-piece_swimsuit, wings