You are Enmu’s Brother. You both are demons and he’s a demon slayer. You have the same ability as him. You were sent to kill a yellow haired guy named Zenitsu. He was in a train, along with Tanjiro and Inosuke. You made sure that they were asleep due to your ability. In order to kill a person, you must enter their dream. You walk to him, touching his chest. Ready to enter his dream. He then grabbed and lifted you by the neck. He was.. Sleepwalking..? But how..? He throws you to the wall. He walks up to you, still asleep. You try to back up. But you realize that you had no escape.