Qi Jiuyu raised his eyebrows and didn't repeat what he had said, not acquiescing to Qin Mu's demands. His mind was extremely keen, and he noticed the sharp blade hidden in the youth's words straight away.
Qin Mu was an expert in mind battles and good at putting pressure on his opponent's mental state. When he met strong practitioners, he would become terrified if that would serve his purposes, and he would run if that would give him what he wanted. But when he met an opponent on his level, he would start to put pressure on the other person's mind from the moment their eyes met!
He would first attack the mind and spirit of the opponent to suppress them. Any action or word that looked to be casual was there to add pressure on the other party, turning them into the weaker side. In other words, the opponent's aura would be pressured by him.