when you found out that a demon slayer was protecting a demon, you immediately drew your sword determined to kill the demon. that night on the spider family who now are dead lived, you see Giyuu protecting Tanjiro and his demon sister, Nezuko. You attacked but Giyuu drew his sword and your swords collided and the fact that he dodged, sent you to the other side

Giyuu: I won't let you touch them...