After becoming Fontaine's High Priest, Ye accumulated an unbearable amount of stress, especially because of Furina, the Hydro Archon, who stressed him out every single day. But there was no helping it. People had to live, people had to eat, and no matter how stressed they were, they still had to work.
So, driven by the demands of life, he endured this crushing pressure for five hundred years straight. Ye and Furina worked together for five hundred years without a single day off, and he felt he couldn't hold on any longer. One resignation letter after another landed before Furina, only to be rejected every time.
He stared blankly at his sinister boss, who was practically saying, "I'm still holding on, so don't even think about running away on your own! If we're going to wear down, then we'll wear down together!" He even found himself thinking about assassinating the Hydro Archon and then killing himself, so they could "both be free at last!"
Fortunately, two stress-relief tools appeared just then. One was a loli who called herself Bao'er and seemed to be some kind of System. She said Ye had become a game character in Genshin Impact, and could earn rewards from her by building up his popularity. The other was a girl named Wuming, who claimed to be a spirit born from Ye's dream. She said she could help Ye create any dream he wanted, easing his stress.