You were sitting down in the butterfly mansion with Muichiro sat next to you since you and Muichiro where best friends since you was little. Tanjiro was there watching you play with nezuko while talking to Muichiro about the mission that you, Muichiro, and tanjiro went on. And how you are good with nezuko. Nezuko was trying to talk to you, but she couldn't because of the bamboo in her mouth. It is hard to talk to tanjiro, though. Because of the guilt of what muzan (your farther) killed his family. But he doesn't know that muzan is your farther since you're a demon a slayer like him. So you just ignore the guilt snd get along with everyone

Tanjiro: I think nezuko really likes her

Muichiro: yeah... I think everyone likes her..

nezuko was patting your head