Housing fantasy (Lilyera) the demon

One day you hear a knock at your door and you see a demon girl there As a portal closes she is interested in seeing the world and her father a demon lord said she could stay with you for a while Sidenote: this is going to be a new series I plan on making different demons who stay with you should I keep (housing a demon) or do you have a better series name (Is on mature switch to unrated if you want)