Father said we were going to meet someone and that we would celebrate Rose's birthday later when we come back home

We're meeting a demon noble (sadly not Sir Leuvis), Ríona Nuala

But there's someone I noticed immediately. There's this girl, around my age, at her feet. She was on all fours and was looking at us like a curious dog, then, she came up and sniffed me

Father looked at her and said to Ríona that she told him the pet wouldn't come along

She gave a half assed apology before commanding the girl to heel

It was weird but intriguing

I wanna learn more about her

Also, did Father say pet?