Xu Hongyu held a high position within the direct descendants of the Yu family's four generations. Having stepped into the Tendon Changing Realm and able to stand on her own as a powerful figure, Yu Yun knew that she and Yu Ru could cause a ruckus without issues, but they couldn't interfere with Xu Hongyu's matters. Otherwise, at the very least, they would face a scolding, and at worst, they might have to face the punishment of reflecting upon their actions in solitude.
Therefore, after recognizing Chen Mu, Yu Yun didn't linger but left directly.
After all, this was South City, and stirring trouble to catch Xu Hongyu's attention would lead to no good.
Mainly because Xu Hongyu herself was quite partial to Yu Ru. On the one hand, Yu Ru's father and Xu Hongyu's mother were siblings; thus, Yu Ru and Xu Hongyu were almost like sisters, while Yu Yun's relation to them was more distant.