The story of a taxi driver who grants the last wishes of ghosts.

Han Sun-Joo’s life is perfect. She is married to Shin Myung-Seob and they have children. She tries to help her husband succeed at Rahen Group, a company which her mother runs, and she also tries to raise her children as best as she can. Before their marriage, Shin Myung-Seob was in a poor financial situation and he came from a poor background. His life changed drastically after he married Han Sun-Joo. He is now recognized at work. He is a good husband and father, but he meets Yoon Mi-Ra and becomes attracted to her. Meanwhile, Han Jung-Won is Han Sun-Joo’s younger brother. He has a warm heart and he is a good to Han Sun-Joo.

During the Joseon Dynasty, the Secret Royal Inspectors are the eyes and ears of the king. They travel the provinces undercover and listen to the plight of the common people, investigating abuses and corruption of government officials.

The story of Park Jin Sung who owns a late-night snack restaurant.

Hong Ra On, disguises herself as a man and counsels men on dating. Due to a love letter she wrote for a client, she meets Lee Young - future Crown Prince Hyomyeong. Hong Ra On is unaware that he is the Crown Prince and Lee Young is unaware that Hong Ra On is a woman. The Crown Prince becomes interested in Hong Ra On. His eunuchs become aware of this and attempt to get Hong Ra On to become one of them.