Secret Royal Inspector & Joy

Ra Yi Eon (Ok Taec Yeon) is a simple man who dreams of a quiet life, running a small dumpling restaurant, and avoiding any unnecessary drama. His plans take an unexpected turn when he passes the state exam and now he is working at the Office of Special Advisors.

He was even appointed as a royal secret agent, tasked with carrying out secret missions. Although complicated, Ra Yi Eon respectfully accepted his new position.

Not long after, Yi Eon's life changes when he meets Kim Joy (Kim Hye Yoon), a smart woman who has great curiosity. Unlike most women of her time, Kim Joy is independent and strong-willed. She even succeeds in divorcing her husband, a spoiled gambler, despite the stigma surrounding divorce during that period.

Together, Ra Yi Eon and Kim Joy form an unlikely partnership, using their unique skills to solve a series of cases, bringing justice and change to their society.