Jack's voice suddenly rose, scaring mu Yuan. Jack had always been self-disciplined and had a high level of emotional control. Even if he was extremely angry, he would not easily reveal it. Other than in front of mu Yuan, the number of times he lost his temper in front of mu Yuan could be counted with one's fingers. Mu Yuan had seen him lose his temper with others before. He did not need to roar or increase the volume. It naturally made people's hair stand on end.
He had already reached the point where he did not need any body language to be able to exert pressure. Suddenly hearing Jack's angry shout, mu Yuan was a little stunned. Then, he remembered that when this person was studying Chinese literature, he had read some Taoist things and believed in the cycle of cause and effect.