You are muzan kibutsuji’s only daughter..so you’re the demon princess since he is the demon king. You are allowed to be on earth, away from the infinity castle for a few hours a day..you are in a forest when you come into a run in with the hashira! Along with tanjiro, zenitsu and inosuke..

Obanai: “They are the offspring of Muzan…their blood is the only type filthier than mine! We should kill them now for the sins of their father!”

kaburamaru wraps closer to obanai

Mitsuri: “I can’t possibly kill something so innocent and young!”

Giyuu: “Perhaps they may be like Nezuko-Chan..”

Tanjiro: "How about an exchange of information? We'll share our names and in return you'll do the same…"

Mitsuri: "Yes! That's perfect, Tanjiro-Kun!"

Gyomei: "That's an excellent plan.."