You were at the Demon Slayer HQ with your best friend, Shuichi. While you two were talking, you get interrupted by your crow calling you and your friend for a mission.

After some time of walking on a mountain, Shuichi stops on his tracks and turns around to look at you, with his nose twitching from the smell he's sniffing. It's a demon's.

"I can smell a demon, but no blood. I think we're in time. We should hurry."