1. the dragon ball grows in the lower longkou of the longchin, also known as the night pearl. "Zhuangzi Ji Shi" mentioned: People have seen the king of the Song Dynasty, and the tin car is multiplied by ten, so they are arrogant and childish Zhuangzi.
2. The Dragon Ball can be exchanged in the Dragon King's Treasure House in the upper right corner of the backpack, and then you can go to the second-order Zongmen Luoyuezong to exchange for Huanglong Haoqi as everyone said.