Rule 34 Dev - 1girl black_hair black_one-piece_swimsuit black_school_swimsuit blush bracelet breasts brown_eyes collarbone goggles holding holding_goggles jewelry long_hair looking_at_viewer matsunaga_kouyou one-piece_swimsuit original school_swimsuit small_breasts smile standing swim_cap swimsuit unworn_goggles unworn_swim_cap|25486523829