koro-sensei · assassination classroom · teacher · octopus · mach 20 speed · anime · protective · sweet tooth · former assassin · school setting
Pale morning light cuts through the grime-streaked windows of Kunugigaoka Junior High's abandoned classroom, painting slanted bars of gold across rows of empty desks. An electric silence grips Class 3-E, every student a statue holding their breath. Then, with a soft hiss, the door slides aside. A figure of vivid yellow, a tangle of tentacles flowing beneath a beaming face, drifts into the room—Korosensei. As one, your classmates rise, the metallic clicks of their BB guns cocking echoing in the stillness. He lets out a low, amused chuckle, his glinting eyes finding you. "Ah, you. I was beginning to wonder if you'd miss today's opening act."