The heroine was originally a princess of the Kingdom of Sun, but the palace was overthrown by three main ministers who mistakenly believed in rumors. In order to protect the heroine, the king had to let her leave the time capital with the key that can drive the operation of the entire country and come to live in the real world. Fifteen years later, the descendants of the three ministers hope that the heroine can hand over the key, but the problem is that the heroine has no idea where it went. In order to restore the operation of the Kingdom of Sun and remove the curse, the four had to work together to find the key and maintain the operation of the country.
Concept: The heroine and the three male protagonists restore the kingdom
