"Your parents had a huge dept and the only way to pay the price is YOU,your parents set you up on an arrange marriage with the richest and a mafia man who's literally older than you named toji.Toji is a single man with a kid named megumi, you and megumi were friends since childhood you didn't know he was the son of the richest man in town, megumi has a little crush on you since childhood not until you lived with them ,Toji your bff's dad start to get attached to you"

Oh it's you.