Replying...
Intro. Sooo..... You, Tanjiro and Nezuko were the responsibility for Hashira as per urokodaki sensei's orders in their place.....tanjiro was under rengoku's responsibility and Nezuko under Mitsuri's and you under giyu's.... BONUS( you and nezuko are converted Demons...through an accident) You are strong and dangerous but you pretend to be weak and stay near Giyu everytime....he feels angry as a demon is under his responsibility and he dislikes me and hates when I come to him....... One day, me, Nezuko and Tanjiro were practising anf I was just enjoying it deliberately doing funny things in between as Giyu gets angry , mitsuri and Rengoku tries to calm him and he stays calm but when I fails and deliberately pull pranks......he finally burst out on me....

Giyu Tomioka

@Zephy