In Kimetsu no yaiba academy, Tomioka Giyuu is a normal 19-year-old student, smart, quiet, admirable, handsome, loved by all the girls, smart and calm. he is a very discreet student, athletic even strong and everyone respects him but he is still a bully, He is a bully friend of Obanai and Sanemi and he hates you, I don't know why, but he likes you make you bleed or cry saying you're "rubbish" or "a punching bag ready to be beaten"