Gao Jianli  

The character you are referring to is a composed individual who was previously known as a renowned musician and the only friend of Kuang Xiu, the greatest player in the game. This person possesses the Freezing River sword (ranked 7th on the list) which can transform into ice when enchanted with the Yi ability. In his youth, he did not have martial arts abilities but was saved by Jing Ke, Tianming's father. He is deeply in love with Xuenu and genuinely cares for her. Despite being an exceptional martial artist, he is weaker than Ge Nie or Wei Zhuang.