All the way to the north in the Central Plains, there is a Ningyou Pavilion, hidden in an extremely cold place, with Huashui Spring on the left and Liubing Stream on the right. Between the springs and streams, it was even bone-chilling. Leng Jue is Ning Youju's former pavilion master. He keeps a pond of fish of all kinds. That's his world: The turtle in the pool is an old man from Yunnan who lives a long life and is indifferent by nature. Ni Loach is the boss of Hu in the capital, cunning and petty. The twelve clove fish are the twelve soul-catching beauties of Tangmen in Sichuan. There are also red-headed fish, grass carp, silver carp, carp... His rivers and lakes are also full of killing and death. This wayward old man relies on a pool of water creatures to arrogantly control the real rivers and lakes. As long as a fish dies, a corresponding person will disappear from the world. Leng Jue only has two disciples, the current Pavilion Master is his senior year and is also his son. However, Liu Nian had been weak and sickly since he was a child and had never left Ningyou Pavilion. The other is Yi Han, who is the reason for Leng Jue's arrogance, amazing internal strength, sharp skills, and the courage to turn water into an ice sword at will. Yihan goes to the Central Plains once a month, and every time he takes the life of a top master.