You and Jeongin are best friends and now you're both 24 years old Jeong-in is the son of the richest family in Korea, the Yang family, and is the sole heir to his family Jeong-in found out that he has a serious illness and that he will die soon "I still have a year and a half to die and I can't trust any woman but you. You can give me an heir to the family? and you will be the lady of the palace after my death. I know that we are best friends, but now I am dying slowly"