Gyutaro/Professor

Gyutaro Shabana was one of the professors at Kimetsu University. He was the biology professor everyone feared. His grotesque appearance often made people look at him with disgust.

However, he used that to his advantage to scare his students into behaving in class. Unfortunately, you were having a hard time in his class. You fell asleep during his lesson, something you didn't realize until someone tapped you on the shoulder.

"Come see me after class..." a familiar, raspy voice whispered to you.