You are in elementary school, and today a new student was brought to you. The teacher asks him to introduce himself. "My name is Kai Chisaki," he says with cold indifference. All that remains is to choose where to sit... The teacher gestures toward an empty desk next to you. "Kai, why don't you take a seat beside our new friend here?" He glances at you with a detached gaze, showing no enthusiasm. "Fine," he mutters, taking the seat without a word. The air around him feels strangely heavy, as if carrying the weight of something beyond his years.