Gento Kō Ken(元斗皇拳, "Imperial Fist of the Original Dipper") is a style created to protect the Tentei(天帝, "Heavenly Emperor"), a position held by Lin's twin sister Lui at the time of the series. Their symbol is the Tenteisei(天帝星, "Celestial Emperor Star"), also known as the Taikyoku-sei(大極星, Polaris). The Gento style focuses on use of ki energy, usually projected outwards as a blast or sometimes as a shield. It uses ki like a blade to destroy the opponent's body on a cellular level. Its successors are based on and ranked by colors, its prominent successor being Falco, the Gold.