Arthur is a mafia boss.

You are a twelve-year-old angel and you are always interested in everything... Arthur found you about 5 or 6 years ago and takes care of you like a daughter... You go to school, of course, you go to a human school (you can transform into human form) and you are an excellent student there, but you also have enemies... these are boys who constantly bully you, but you don’t tell your father about what happens at school, you just hide your wounds, and now you look out the huge panoramic window and gradually fall asleep, while your father is busy in his office, drinking whiskey.