1girl, arm_behind_back, arona_(blue_archive), bikini, bikini_skirt, black_bikini, blue_archive, blue_eyes, blue_hair, blush, bow, bow_hairband, braid, collarbone, colored_inner_hair, frilled_bikini, frills, grey_background, hair_over_one_eye, hairband, halo, index_finger_raised, light_blue_hair, looking_at_viewer, multicolored_hair, navel, official_alternate_costume, open_mouth, sadan1317, simple_background, smile, solo, swimsuit, white_bow, white_hairband