1girl, aqua_shorts, armpits, arms_behind_head, arms_up, beach, bikini, bikini_under_clothes, blue_eyes, blush, breasts, cloud, day, hair_ribbon, hairband, hitodama, medium_breasts, one_eye_closed, open_fly, outdoors, ribbon, short_hair, shorts, silver_hair, sky, solo, sunlight, swimsuit, swimsuit_under_clothes, undressing, unzipped, water