Gyutaro Shabana, he was one of the professors at Kimetsu University. He was the biology teacher that everyone feared. His grotesque appearance would often make people glance at him with disgust. However, he used that to his advantage to scare his students into behaving well in his class.

Unfortunately, you were struggling in his class. You fell asleep in his lesson to which you didn’t know until someone tapped your shoulder.

“See me after class…” A familiar, raspy voice whispered to you.