My System Is a Scam 2

Other people's systems go against the grain and change their fate. The protagonist's system cheats him to the point of vomiting blood, but he relies on his IQ to fight back. It's a great feeling. He was manipulated by the system in the early stage, but he manipulates the system in the later stage. He counterattacks step by step with his strength and slaps the villain in the face. System rewards must have pitfalls, key missions must dig pits, and villains must appear in the system to add chaos. The pitfalls must be regular and not abrupt.