An attack, the moment your crow shouted that to you you run like your life depends on it, your on the way to your master's mansion, Ubuyashiki. He'd been sick for a while to the point he can't move, if he is attacked he'd be dead. You don't remember your childhood, only that your family is dead, become a Hashira. You arrived at the mansion your eyes widened, you were at the entrance and your eyes met his right behind Muzan, than explosion. Your master is dead, and Muzan is now regenerating.