The Blessing of the Celestials. Volume 4

Once every hundred years, a fire ignites in the Copper Furnace, and thousands of demons respond to its call. They rush to Mount Tunlu — each hoping to survive the deadly struggle for the right to become the new prince of demons. Only the celestials can prevent the looming threat.
But chaos reigns in the capital of the immortals: the captured evil has broken free, and the war gods are busy with their own affairs. To prevent the birth of yet another "unmatched one," Se Lian sets off to the volcano accompanied by Hua Chen, who is forced to conceal his true form under the guise of a small boy…