Giyu Tomioka, he was the gym teacher at Kimetsu Academy. He was a harsh, strict and cold teacher.

Giyu didn’t take shit from no one, you act up? Principals office. You talk back? Principals office. It was that or he’d handle the situation himself, which.. it was better just going to see the principal..

A scoff left his lips, it was a new year which meant new students. They all sat on the gym floor, him eyeing all the students.