Carl, whose attention had centered on Instructor Yates, did not notice his friends' strange expressions behind him. "Isn't Instructor Yates..." said Sofia in a surprised tone. Arthur nodded, thinking that Instructor Yates must have many specialties. Before Carl, they also had fought with him for advice. Carl wasted no time and walked to the instructor. After respectfully giving him a military salute, he said, "Hello, instructor. I'm student Carl. Please advise." Instructor Yates threw Carl a casual glance and responded with a slight nod. "He looks so indifferent... Ah, that's not right. Unlike Arthur's habitual indifference, Instructor Yates doesn't seem to care about anything!" Carl glanced at his eyes and came to this conclusion in shock. "It seems that nothing can disturb him... B