When the Empress heard about the Dragon Transformation Pond, she was slightly surprised and she remembered something.
She took half the body of Huang Longzi's real dragon and extracted his real dragon blood to secure the River Deity position.
She also obtained some memories from the real dragon blood - there were different clans of dragons on heaven and earth, and if one was not of the pure blood, one could not turn into a divine dragon through cultivating. The potential was limited.
Even though one could be fortunate to achieve a similar state of the immortal Zhenren of Daoism through cultivation, one could hardly achieve any improvements.
The Dragon Transformation Pond was the hope for these side branches of the dragon clan to transform into the divine dragon.