Doomsday: Superpowers Aren't That Strong, I'm a Cultivator!

The protagonist has a system, he also cultivates immortality, and exchanges crystal cores for spiritual stones. What's the point of going to the safe zone? The protagonist has no supplies, what can he give in exchange for crystal cores? Pure water plot, just make up the word count. The setting of this novel is good, but if the protagonist joins the safe zone, half of the novel will be ruined. After seeing Chapter 41, I gave up reading the negative reviews.

Just so-so! The pace is slow, this is not the protagonist