The Zheng Family from the East Sea is dominant, their strength surpassing even the Chen Family. However, when they climbed Kunlun Mountain, the Zheng Family was not all out in full force. Coupled with the fact that the Chen Family had taken shortcuts to avoid many losses, when the two families clashed just now, it was a stalemate. Therefore, the best choice is for both families to join forces and proceed together.
The Zheng Family and the Chen Family don't exactly have a good relationship; in fact, they are quite distant, with little interaction. But Ye Shikai has a close personal connection with the Zheng Family and is very good friends with Zheng Ji. Out of respect for him, Zheng Li wasn't as resistant to the Chen Family.
