Yeon Woo-jin as Gong Gi-tae A year-old successful plastic surgeon with an abrasive personality. Gi-tae enjoys solitude too much to settle down, much to the dismay of his parents. As an employee at a luxury brand shop, she is surrounded by luxury products, but has none of her own.
Although her age and socio-economic class make her an unattractive bride in the "marriage market," Jang-mi still wants to find the right man to marry, because her greatest fear is being alone.
Though playful and sweet, Yeo-reum's painful past his mother abandoned him as a child makes him push away anyone who gets too close. But he finds himself falling for Jang-mi. After their break-up, Se-ah's convinced that women including herself can do without men. In order to get pregnant, she begins to blackmail Gi-tae into giving her his sperm.
Hoon-dong once dated Jang-mi but broke her heart and even accused her of being a stalker. But when she gets over him, he regrets his actions and begins pursuing her again. Hyun-hee develops real feelings for Hoon-dong after their one-night stand.
Supporting characters[ edit ] Kim Hae-sook as Shin Bong-hyang, Gi-tae's mother Seemingly cold and aloof, she's obsessed with marrying off her son Gi-tae, but he constantly thwarts her schemes.
Kim Kap-soo as Gong Soo-hwan, Gi-tae's father A doctor who's cheating on his wife with a younger mistress. Im Ye-jin as Na So-nyeo, Jang-mi's mother She and her husband run a chicken and soju restaurant, and are constantly bickering.
Park Jun-gyu as Joo Kyung-pyo, Jang-mi's father He and his wife are so happy and excited to have a future doctor son-in-law, that Jang-mi is unable to tell her parents the real score between her and Gi-tae.
Park Hee-jin as Gong Mi-jung She gets bribed by her sister-in-law Bong-hyang into tailing Gi-tae and Jang-mi, hoping to find proof that their relationship is fake. Kim Young-ok as Noh Geum-soon Gi-tae's grandmother, and the only member of his family who approves of Jang-mi.
Lee Bo-hee as Hoon-dong's mother A wealthy widow who dotes on and spoils her only son. He is also antagonistic towards Yeo-reum. Lee Yeon-kyung as Soo-hwan's mistress.