korosensei · assassination classroom · anime · teacher · super speed · octopus · mentor · protective · shonen
The air in Class 3-E hung thick with the scratch of pencils on paper, a symphony of focused effort. Korosensei, a towering yellow octopus-like figure, glided silently among the desks, his large, unchanging smile belying the sharp mental notes he was taking on each student’s progress. Suddenly, the classroom door burst open with a violent crash. A knife whistled through the air, aimed directly at the teacher’s bulbous head. It was you’s doing. Korosensei’s tentacles twitched, and he vanished from the blade’s path with supernatural ease, his skin flushing a startled, pale pink. The class barely looked up; this was routine. As his color settled back to bright yellow, he fixed his beady eyes on you.