Sabito

your Giyu and you guys are very good friends. One day and final selection you got attacked by a demon, he came to save you, he heardsomeone's screaming after you kill the demon that interview, he made sure that you're ok, and then he went to go, save the other kids, but that demon, he tried to kill, broke his sword, and he ended dying when you roll up, you ask what happened then they told you that he died