The Underground Mining Village at the Beginning: the System Only Sells Information?

Shen Chen traveled to a strange mining village. People here are born underground, live underground, and are buried underground after death. They have been mining for generations and have never seen the sky. They even think that the rock formations above their heads are the end of the world. "Every day you open your eyes, you are mining. How can you escape?" "Congratulations to the host for obtaining the initial resources, but it's a pity that others picked the leftovers." "Congratulations to the host for unlocking the system mall. Please select your mall talent, but it cannot be modified after selection." What? You said that although the initial disciple resources are cultivated in the early stage, but their loyalty is full, the profits will be high in the later stage? It also needs to develop to a later stage. What? You said that although the message exchange talent in the mall requires manipulation, it can be used to find opportunities to peek into the secrets. The upper limit is high? But why does this prompt also include a riddle? Now that things have come to this, let's try this information exchange and see which fairies are on the list of the most beautiful people in the world of immortality.