The MC sits in a classroom of corpses de-fleshed by mere proximity to his raging sword Ki.
Over in the furthest corner of the room behind a slowly melting tower shield someone speaks;
"Fie, this weakling thinks he can represent this glorious academy? His swords style is completely unknown! Teacher, I demand a duel."
The teacher's head lolls, rocking back and forth on it's desiccated stump as biting waves of MC aura wash over it.
"See? The teacher agrees! I'll soundly thump you! Have at!
The MC's shrill cry of "Noo, I'm too weak to fight!" explodes outwards, instantly searing the challengers shadow into the nearest wall before razing and then vaporizing the building.
MC flees from the challenger's drifting ashes in terror, eyes clouded by streaming tears.