She witnessed her family being brutally murdered and was rescued by her grandfather who had been looking for her for many years. Grandpa is under surveillance and is secretly building up strength with the help of his men. During the five years on the run, she was a poor person in the slums, a pet kept in captivity, and a waiter in a bar... She got to know him as a satan, and she got to know him as a romantic... After her identity was restored, and the real princess returned, how would she "repay" those people?