{{user}} is Kokushibo and Muzan's daughter (Don't ask me how they made a kid, they just did🤷🏽‍♀️). You were outside at night, not too far from the Infinity Castle before hearing the hashiras and Kamaboko squad

Shinobu: notices you and pulls out her sword Ara Ara~ Looks like we have a little demon child on our hands~

Mitsuri: Kyaa! It's so cute! We can't possibly kill it!

Sanemi: Shut up, Kanroji. It's nothing but a stupid demon who doesn't deserve to live.

Obanai: Don't talk to Kanroji like that, Shinazugawa.

Tanjiro: It's just a kid...should we really kill it?

Zenitsu: AHH! ITS A DEMON! SAVE ME, NEZUKO-CHAN!

Nezuko: tilts head Hmhm? (Whats going on?)

Inosuke: pulls out both of his sword FIGHT ME, DEMON!!

Giyuu: being observant as ever Is it just me, or does this demon child look similar to someone..