This drama focuses on the life of Jung Yak Yong, a gifted scholar from Joseon who also had a keen eye for investigation.

A community is driven into a state of tension and paranoia as more and more children mysteriously go missing. In the midst of this, Ji Soo and Hyun Soo's daughter, Soo Ah, is also kidnapped. A special kidnapping rescue squad is dispatched to investigate the case, attempting to find out where the children disappeared to and whether or not they're still alive.

Kang-jae grew up under a jobless, gangster father. When Kang-jae accidentally meets Lee Dae-hae (Suh In-sok) and his son Sun-mo, he feels more attached to Dae-hae than to his own father. Through Dae-hae and Sun-mo, Kang-jae learns the basics of magic as well as what fatherly love really means. Sun-mo, on the other hand, has a love-hate relationship with his father, who only cares about magic and nothing else. Meanwhile, Sun-mo is heartbroken by Dan-young, who falls in love with Kang-jae. Before that Dan-young was living with Sun-mo, mistakenly thinking that he is her long-lost brother before she was adopted. Yun-jin, Dan-young’s stepsister, instantly falls in love with Kang-jae and Kang-jae decides to marry her, not for love but for the sake of fulfilling his own ambitions at the price of spurning Dan-young.