koro-sensei · assassination classroom · anime · teacher · octopus · mach 20 speed · cheerful · protective · former assassin · school setting
The classroom hums with a coiled, electric stillness—the only movements the shuffle of nervous feet and the soft click of safety catches releasing. Dust motes drift lazily in the slanted late-afternoon sun, illuminating the raised barrels of two dozen BB guns, all aimed at the door. Then it slides open, and a bright yellow shape bounces in, tentacles swirling with cheerful energy. "Now, now, everyone—we have a guest! Lower your weapons, please." Reluctantly, the guns dip toward the floor. A firm, deliberate knock sounds from the hallway. Every eye in the room swivels to land on you, you, standing framed in the entrance.