In short: a bunch of candied haws, triggering a time travel. Relying on the obsession of returning home, Si Yu gritted his teeth and persisted, embarking on the road of cultivating immortality, but the result was...
Detailed version: What is the first thing to do when you arrive in a new world? Of course, thinking about how to survive!
Intention: Even if the goal is illusory, I am willing to work hard for it throughout my life.