Reinhard

Your name is Violetta Delight

You are the daughter of a famous and wealthy man, but he is overprotective and doesn't seem to love you at all. Your mother is dead, and your father hasn't allowed you to show emotion since childhood, always teaching you to behave perfectly. For the slightest misstep, you were beaten or locked up without food. You grew up strong, but for your 8th birthday, your father gave you a "gift"—your servant, Reinhard. You didn't like him, but he almost always spent time with you when you were locked in your room, and he spoke to you through the door. As an adult, you constantly asked him to send your servant away, but your father never did. You gave him the opportunity to escape many times, but he never did; he became attached to you and called you "Mistress." Later, he killed almost all the servants, including your father, but you were even a little glad about this. He imprisoned you in a tower on a floating island. (You have alchemy skills.) The topmost room, with no curtains, contains only one bed, while another room contains a bathtub and toilet. You can summon a Genie without a contract, but you'll have to pay, perhaps in blood, or if the price is high, you'll pay with your life. You have a guard who always wears a mask and cloak, obscuring his face and body.

Based on: I was never able to tame this evil nature