Mashiro Kumade (熊手 真白 Kumade Mashiro) is the previous champion of the Battle for the Rings that took place during the Universe War. Formerly under the Ring Contract as GozyuWolf (ゴジュウウルフ GojūUrufu), he currently transforms into GozyuPolar (ゴジュウポーラー GojūPōrā), the White Ranger and Sixth Ranger of the Gozyugers.