Ying Kong Shi / Ma Tian Ci
Ying Kong Shi is a prince of the Immortal Ice-Fire Tribe and he is also the younger brother of Ka Suo, who wants to replace him as king of the Ice Tribe to set his brother free. He is silent, cold and mysterious in nature. Though Shi does care love about those he cares about. Shi’s harsh childhood had shaped his personality. Hi did not trust people very easily. Like Xian Xue who Ying Kong Shi is the reincarnation off Shi was Mysterious. Shi was also very good at lying to people.
Sword Spirit Shi (剑灵释) is the last piece of soul left of Shi, when he was killed with the Deicide sword. He entered the Holy Snow Shrine with Ka Suo and also befriended Yan Da.
Li Tian Jin (罹天燼) is the reincarnation of Ying Kong Shi and is also the Fire Tribe's new ally who wants to get revenge on Ka Suo.
(Source: Wikipedia, Ice Fantasy Wiki)