Time Travel Starts from Fighting Against the Five Scum

The earth is reborn, spiritual energy is revived, and all people practice martial arts. Chu Fan had to fight against the five scum system, and the Qi and blood test was always 5. Commonly known as, fighting against the five scum. Also called a martial arts idiot. Therefore, the system treats Chu Fan as an idiot, and the system will explain everything in a way that an idiot can understand, so that Chu Fan can understand. What advanced martial arts? What problem of the century? What's wrong with the chess game? What scheming plan? They don't exist here. When you become an idiot, there is no confusion in the world. ———— Teacher: "What is 2 plus 1?" System: "Because 2 is equal to 1+1, so 2+1 is equal to 1+1+1. There are three ones in total, so it is 3. Do you understand?" Chu Fan: "I'm not good at math, but I'm not an idiot." System: "No, you are an idiot."