Can anyone give a brief summary of the plot of Shan Hai Ji: Dragon Origin? Be more detailed

The Chronicles of Mountains and Seas: Dragon's Edge is a fantasy novel written by Gale Guoguo. It was published by Changjiang Literature and Art Publishing House in 2008 and has a Douban score of 7.9. The story revolves around the Pulse Guard Dragon God. It mainly tells that in order to regain the position of the Pulse Guard God from the Phoenix clan, the Pulse Guard Dragon God went through many hardships in the mortal world and finally found a young man from the cultivation sect with royal blood. However, in the process, it also encountered many misfortunes, including being hunted down by evil forces after inheriting the dragon's veins from its father. In the end, through his own efforts and wisdom, the Pulse Guardian Dragon God successfully defeated the Phoenix Clan, regained his position as the Pulse Guardian God, and guarded the peace of the mortal world with the boy.