Sixth Child! His Royal Highness the Prince's Soft and Adorable Little Demon Concubine

After escaping from death several times, the little demon Liuliu from the demon world finally turned into a human form by making a wish. From then on, her life changed dramatically. The eldest princess of the demon world: capture her as your sister Little Immortal Official in Heaven: Capture her to be your sister His Royal Highness: Capture her as a maid Huh? I saved you, you have to stay and repay me Okay, I'll repay you then. What should I do if I accidentally ruin the clothes of His Highness the Prince? I can go to the Marriage Palace and ask for a red thread to repair it. What should I do if His Highness the Crown Prince is hungry? Just cook the big fish that His Highness has carefully raised for hundreds of years. What should I do if His Highness the Crown Prince is injured? Just spit on him and wipe it with him. Not only was His Highness the Prince not angry, he also gave her elixir every day and warmed her bed every day...