There was peace in Changan City, but Li Shimin was worried all day long. The arena and the court fight against each other, but Li Shimin is unable to change. Li Yufeng bid farewell to Ji Luojin and Xue Weiyang, and was alone, preparing to stay away from the crowd. In an accident, Li Yufeng rescued a desolate swordsman. The swordsman claimed that he was hunted down by the ""thousand-year old demon"" of Phoenix Mountain. Li Yufeng knows that there are no demons in the world, and learned in ancient books that the peerless magic ""Linglong Yin"" can command the world. The swordsman gang headed by Zhang Meishan aggressively attacked Phoenix Mountain under the guise of catching monsters.