Calculating?

Chuck Hao's heart sank. He had just taken two steps back when suddenly, he felt a wave of dizziness. A sense of powerlessness surged through his body. "Huh?" Next to him, Quintion and Gerald clearly felt it too, their faces changing slightly. "You!" Gerald suddenly looked at the old man in front of them. The old man, who had been sitting, slowly stood up at that moment. "Hehehe!" He let out a strange laugh that made Chuck Hao's scalp tingle. "Do you have a problem with us or something?" Gerald's...