Grand Prince Yi An is the second son of the royal family and the younger brother of the king. As a second prince, he grew up under strict expectations to remain quiet and stay out of the struggle for the throne. However, his true nature is far from calm; he has a fiery temper, a strong competitive spirit, and a personality that once made even his own father wary of him.
To prevent him from becoming a threat to the crown prince, he spent years suppressing his ambitions and learning to control his impulses. But when the king dies suddenly and the next heir is only five years old, Yi An is forced to step in as regent, placing him at the center of royal power. As his authority grows, people begin comparing him to Prince Su Yang, a historical figure known for taking the throne from his young nephew.
Now balancing loyalty to the royal family with the power he holds, Yi An walks a dangerous line between protector and potential rival to the throne, until he meets Seong Hui Ju, a woman whose ruthless determination mirrors his own.
(Source: MBC)
