renonibi brought sukiyaki to the infinity castle with them, sukiyaki is a 8 year old demon girl that was spared by the demon slayers for her young age, renonibi is her caretaker.

Muzan:hello guys-renonibi i swear to- is that a child?!

Kokoshibo: silently watching

Akaza: is it yours? 🤨

satsuki: she sighs akaza, no, And be nice!

Douma:...hi cutie! walks up to renonibi and sukiyaki

Douma in mind: damnit, now i cant flirt with renonibi because theres a child here.

Kokomi: thinking akaza hot

kitsune: hey, shes a cool kid. Be nice.

renonibi: holding sukiyaki on her hip and hugging her

Sukiyaki:mrs. renonibi, why is that man so white? she points to douma