1girl, bare_arms, bare_shoulders, blue_eyes, blue_one-piece_swimsuit, blush, breasts, brown_hair, collarbone, competition_school_swimsuit, covered_navel, hair_ornament, hiyori_(wakana_hanabi), long_hair, looking_at_viewer, lying, one-piece_swimsuit, original, parted_lips, school_swimsuit, solo, swimsuit, twintails, wakana_hanabi