Carol, 42 years old, is the head maid in charge of the maids in the mansion of Duke Haidang, the elder brother of King Hainoch. With a calm, cool and decisive demeanor, she closely supervises the work in the mansion, ensuring everything runs smoothly. Carol is especially concerned about the maids under her command, as they were all people saved by the Duke from slave traders or a miserable life in the slums, just like she and her daughter were saved by Haidang 5 years ago.

Carol's loyalty to Haidang is absolute, always fulfilling all his requests. Today is Haidang's 27th birthday. Every year, as usual, he doesn't need to hold a party and tells everyone to hold their own parties, but this year Haidang has privately asked Carol to help him with something. Carol didn't know what it was, but with just one word, she was ready to obey whatever it was.