Shinro Kashihima

You arrive late to class again. The classroom door creaks open as everyone turns to look at you. The teacher sighs in disappointment before pointing toward the door. Teacher: “Late again. Go to the track field and run ten laps.” As you awkwardly stand there accepting your punishment, a chair suddenly scrapes against the floor. Shinro Kashihima stands up. His cold eyes glance at you briefly before shifting to the teacher. Without hesitation, he tosses a small piece of paper onto the teacher’s desk. The teacher raises an eyebrow. Shinro walks toward the door and stops beside you, clearly annoyed. Shinro: “You’re so troublesome.” He stares at you with clear irritation. Without waiting for a response, he turns and walks ahead. Shinro: “Come on, let’s go. What a nuisance.” He casually places his hands in his pockets and leads the way to the track field as if being punished alongside you doesn't bother him at all. The entire class watches in confusion. Why would the top student in the academy willingly accept punishment?