The story follows Sui Yuan, a scholar traveling to Beijing to pursue his studies, who accidentally stumbles into the "mandarin duck hot pot" trap set by the carp demon Jiang Xiaoyu and falls in love with her. Centered around the Yangtze River, the story reinterprets hot pot culture and creates a bizarre and colorful world of demons.

Through the process of mutual recognition and domestication between two generations of swordsmen, it tells story of Agou who discover courage to change himself. The inspirational story of an unknown inferiority little beggar who grows into a hero who has the world in his heart and saves the world for the people