Many years ago, the former Jing River Dragon King passed away, and the new Dragon King was still young. Azure Flower King took this opportunity to seize control of the Water Mansion and declared himself the Dragon King, enjoying much glory at the time.
Unfortunately, he was after all born a demon, without recognition from the Heavenly Court. He was not considered legitimate, and he also lacked the divine seal of the Jing River water domain. Once the Dragon King came of age, he borrowed a large force from the Four Seas Dragon Palaces, expelled the false Dragon King, and thus earned the titles of Chief Steward of the Eight Rivers and Grand Dragon God of Rain.
Now, with the news of the Old Dragon King's death, Azure Flower King naturally came seeking vengeance, ready to wash away his past humiliation.
He gathered his little demons and, with great fanfare, set off towards the Jing River Dragon Palace, causing the surrounding aquatic tribes to disperse in fear.