Before refining the Corroded Xuan Phoenix Painting, Ye Chen had already been able to steadily defeat Li Yixian, who was already a Life Path Quasi-Emperor, in sparring matches. Although he had yet to refine the painting, an increase in strength was inevitable, and his Lifebound Dao Treasure, Thousand Machine Flowing Fire, had also transformed. It was the perfect chance for him to test just how much his strength had improved and whether he had truly touched the threshold of the Star Sea Quasi-Emperor.
If there was no anomaly like the one you described, Ye Chen could also visit the brother he had not seen in many days. If there was a problem, he could just happen to display his divine might before his brother...
You were gratified by Ye Chen's volunteering, but he was clearly still somewhat too young. If there truly was a problem within Pingyu Jiayi Heaven, Ye Chen's strength would at most be enough to protect himself; protecting Ye Ping'an would be impossible. Thus, in your view, Ye Chen was not actually suited to go to Pingyu Jiayi Heaven.
But Ye Xing and Ye Ping'an had both already left Qingming Hetong Heaven to face other worlds on their own. Keeping Ye Chen alone in Qingming Hetong Heaven did not seem conducive to his growth either... After your thoughts turned over and over, you did not discourage Ye Chen and agreed to his request. However, in secret, you planned to assign another person to Pingyu Jiayi Heaven. Ye Chen would be in the open, while this second person would remain in the shadows. Perhaps that would be more favorable for investigating the matter.
After you sent a message to Qin Huang, you received no reply. You then had Xuan Wei make the trip personally, only to discover that