C58 What a F*cking System

What is a plane? Chu Fei was puzzled. The word "plane" was very common in fantasy novels on Earth. Although Chu Fei had read online novels for a long time, he still did not understand the concept of a plane.

But even if he did not talk about a plane, It just came out again. The string of zeros made Chu Fei lose confidence. He suppressed the fear in his heart