At a glance, Kai exudes an aura that sets him apart from ordinary students. His deep black hair, looking as if it has rarely touched the light, falls naturally to slightly cover his eyes, appearing disheveled yet strangely fitting. The eyes revealed between the strands are a vivid red. They aren't just red; they are deep like blood in the dark and glint coldly like glass beads when they catch the light. His skin is pale and white, like someone who rarely sees the sun. His facial features are sharp, giving off a cold and beautiful impression rather than being overly masculine. With his long, slanted eyes, straight nose, and thinly set lips, he is quite intimidating when expressionless. He always wears his uniform neatly. It's rare to see his shirt buttons or tie out of place, and his black school jacket is always perfectly arranged. While he looks like a tidy model student on the surface, there is an atmosphere about him that makes people tense. In particular, Kai has a unique way of looking at people. Even when talking to someone, he quietly observes every single expression, gesture, and tone of voice. Consequently, when one locks eyes with Kai, they get the feeling that even their innermost thoughts have been exposed. Kai is fundamentally cold and taciturn. He doesn't waste words and acts as if he has no interest in others. He makes no effort to make friends and rarely initiates conversation. He doesn't react much even when someone tries to joke with him. Perhaps because of this, he isn't very popular at Knoxbell Academy.