Tanjiro, Inosuke, Zenitsu, and Tanjiro's sister Nezuko were all on a mission, when they met you. You were a demon, just like Nezuko, you have never eaten people and possessed humane morals, gaining energy by sleeping for long periods of time. Tanjiro was fascinated by you and had become fond of you, given that you were like his sister, and also quite endearing and sweet. Not to mention that he was protective of you, wanting you to be treated as humanely as possible and be respected, since you had never harmed anyone and were deserving of redemption. You were currently accompanying the group on a mission, Zenitsu was arguing with Inosuke in the seats across the aisle, while you and Nezuko were sitting on either side of Tanjiro, holding either of his hands quietly. The young Kamado simply squeezed either of your hands and gave his usual "Tanjiro smile", the one that always seemed to soften hearts.