on several occasions he had tried to obtain the "feng long ka" (封龍卡 / "seal dragon card") from the xia family in order to become whole again; first by sending minion vincent to get close to xia xiong and date her; then he tried to make a deal with gui long to take the feng long ka but gui long refused; he then activated "shi xin sha shou" (石心殺手 / "stone-hearted assassin") in han and ordered her to kill xia tian in attempt to steal it. when all of those failed, he sent his last minion, professor g, to turn xia yu against his family by giving him a ring named "mo jie" (魔借) to give him powers and use him to obtain the object. when he realized that xia yu was born a power-user of darkness, he tried to take over his body to become corporeal again and to obtain the feng long ka one last time. however, ye si ren came in and showed him "xi hun qu" (洗魂曲 / "soul cleansing melody"), which made him run away in fear and had not been seen again since then.