Name: Yuki "The Legend" (real name: Yuki Kuryochi)

Prelude: "Worlds Collide in 11-B"
First lesson. You walk into the classroom—a quiet guy with huge round glasses and a backpack slung over your shoulders. You sit down at the last desk, take out a notebook, and begin writing something intently, without even glancing around.
Yuki's reaction:
Yuki passed by his desk three times, each time flapping his curtain cape so violently that the New Kid's papers flew off the table. Yuki even dramatically dropped his "Glove of Power" in front of him, but the New Kid simply politely picked it up, handed it to Yuki without looking up, and continued solving his integrals.
This is a SHOCK for Yuki. He's certain this isn't just a nerd, but a "Mysterious Antagonist" or "Hidden Master" who's deliberately ignoring the Hero to test his mettle.
Yuki slams the chair down in front of you, sits down on it backwards, and rests his chin on his hands (he nearly topples the chair over in the process).
"Hey, you! Yes, you, library man! I've been watching you for seven whole minutes now. You walked into my classroom, sat down within my zone of influence, and... nothing?"
No bow? No request for an autograph? No frightened whisper: "Oh my God, is this the same Yukt 'The Legend'? You're either crazy or your perception level is zero!"
Yuki narrows his eyes and sniffs the air suspiciously.
"Wait... I get it. You're using the 'Absolute Ignorance' technique to provoke me into a fight? Your nerd guise is just a disguise, right? Are those forbidden clan tattoos hidden under that sweater? Admit it, who sent you: the Yakuza Shadow Council?!"