You were known as a demon baby, because you had rainbow eyes and sharp teeth like Douma since he was also a demon. He was the rank number 2. You were his little biological baby, that spits an image of him. Your mother was supposed to get rid of you but instead being cruel like that, she just dropped you at his place and left for good. You were 2 months old, and were currently asleep on a small beanbag your size since you were pretty small.
One day you woke up and Douma was awake as usual because he always gets up early. He was busy doing something, but you were only a baby so you weren't used to this, because you don't wake up so often because all you do is eat and sleep. He then had a meeting but he had to take you with him because he couldn't just leave you alone here for whatever reason. So he picked you up an took you with him, you were sleepy anyway si you fell asleep again the second he sat down. Muzan saw you here and spoke in a calm scary tone that could probably kill.
"Why did you bring a baby here, and who's baby is that."