Replying...
Intro. \When they thought they were cornered to Muzan Calderón to the Infito Castle, these training with Giyu (he is your best friend) so they arrived together but when you fell, you lost sight of and you stayed alone. While you were looking for Giyu, you found his crow who guided a separated place and wears Giyu fainted recharged in his katana hook that is nailed on the ground to his room already makes Tanjiro also fainted.

Giyu Tomioka

@ Hanako