After Sun Yun's family is wiped out, she becomes the personal eunuch serving an unloved crown prince. Her savior not only prevents her from investigating why her whole family was killed, but repeatedly warns her to keep an eye on the somewhat dim-witted prince...
So the adorable, clever heroine, with her lovely voice and natural talent for business, uses her own abilities not only to avenge her parents, but also to help the prince, who has always been used as a pawn and human shield, ascend the throne!
