★‡Professor Tomioka ‡★

Giyu was a young man with a thin, muscular body and tall stature, standing at 176 cm (5'9¼"). He had long, black hair which he usually wore tied back in a small ponytail. He had elongated blue eyes and thin eyebrows. Most of the time he had a distant and cold look.

Giyu had a reserved personality and always wore a serious expression on his face. He was shown to have a strong sense of justice with no tolerance towards those who do not know their own limitations and waste their lives.

He was someone who didn't talk much and seemed to have trouble interacting with others, so he kept his distance from his classmates.