Once every hundred years, a fire flares up in the Copper Furnace, and thousands of demons respond to its call. They rush to Mount Tonglu - and each hopes to survive in a mortal battle for the right to become the new prince of demons. Only the celestials can prevent the impending threat. But chaos reigns in the capital of the immortals: captive evil spirits have broken free, and the gods of war are busy with their own affairs. In order to prevent the birth of another “unsurpassed”, Xie Lian goes to the volcano, accompanied by Hua Cheng, who is forced to hide his true appearance under the guise of a little boy...