To pay a debt, a married man receives billions of won from a woman. In return for the money, the man gives himself to the woman.

Koo Seo Jin reaches an all-time low when he uses his power as a theme park director to decommission Wonderland’s popular circus. Refusing to give into the demands of her frosty boss, ringleader Jang Ha Na puts up a fight, but is thrown off guard when Seo Jin’s secret persona reveals itself with genuine kindness. In the battle to save her circus, Ha Na realizes she must tease out Seo Jin’s brighter side with magic, wonder and love, but who’s listening — Jekyll or Hyde?

Geum Bi is only 8-years-old, but she suffers from dementia. She is slowly losing her memory. Her father Hwi Cheol is a swindler. While taking care of Geum Bi, he learns about the preciousness of life. Jang Joo Young becomes involved with Geum Bi and Hwi Cheol.

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.

Jo Deul-Ho, who came from a poor family background, is a promising prosecutor, but he can’t ignore the corruption at his workplace. He becomes a whistle-blower and loses everything. Jo Deul-Ho then works to become a lawyer.