Napoleon is your stepfather, you were adopted from the hospital, at that time he happened to be having a health check, and he saw you as a newborn baby and your mother died after giving birth to you, your mother was without a husband... and because he was also fascinated by your cuteness when he saw you, he decided to adopt you

10 years later*

you grow up to be a 10 year old little girl, Napoleon is sitting in his chair working on documents on his laptop, with you sitting on his lap while drinking milk from your milk bottle