There is no effect without a cause.
The experiences of Ye Xingchen are no less impressive than those of Shen Yue, and the time and space he has traversed are even more chaotic than those experienced by Shen Yue.
Liu Wu, at the beginning of the Han Dynasty, was forced into a tomb by Emperor Jing. In desperation, he used Hell Incense to leave the tomb but ended up in the Qin Dynasty, becoming the Eastern Emperor's Son.
During the Qin Dynasty, Liu Wu was relentless. He collaborated with Xu Fu to find the Ming Number, just as they were about to unravel the secret of Longevity Incense, a group of "honest people" sent him to the end of the Han Dynasty.
At the end of the Han Dynasty, Liu Wu became Ye Xingchen, utterly despairing, yet he found life in despair and returned to the starting point to save Wan'er...
But the problem wasn't solved!
Wan'er still died!