Set in a village right after the Korean War, poor but good-hearted Heo Sam-gwan sets out to win the most beautiful girl in the village, Heo Ok-ran, by selling his blood to earn money. Years later, the two are happily married with three children, but their family undergoes a crisis when Sam-gwan's eldest son doesn't resemble him and rumors spread about the boy's paternity.

To survive in a dog-eat-dog world, two rival lawyers with high-class clientele tear apart anything that stands in the way of their ambitions.

To survive in a dog-eat-dog world, two rival lawyers with high-class clientele tear apart anything that stands in the way of their ambitions.

A mother with a heart of gold navigates the cutthroat world of private education when her daughter tries to join a celebrity math instructor's class.

Lee Young-Joon's family runs a large company and he works as the vice-president of the company. He is smart, rich and handsome, but he is arrogant. His secretary is Kim Mi-So. She has worked for him for years and she is perfect for him, but Kim Mi-So decides to quit her job.

Seol Gongchan is the wealthy, unattached heir to a large company. Having lost both his parents, he is devoted to what remains of his family, particularly his ailing grandfather. After deciding to cut off his only daughter after disapproving of her marriage, the old man is plagued with guilt since the couple was killed soon after he lost touch. By chance, Gongchan meets a woman who resembles his lost aunt and is inspired to use her to fulfill his grandfather's last wish. The woman, Joo Yoorin is the daughter of a compulsive gambler and is constantly on the run, so when Gongchan offers her this opportunity, she cannot afford to refuse. After Yoorin moves in with the family, Gongchan finds himself drawn to her and a forbidden attraction springs up between them.

Ok Da-Jung is the youngest team leader in the cosmetics industry. She has divorced three times so far. She doesn't care what others think about her and she also has quite a temper. Nam Jung-Gi works as a section chief at the same cosmetics company as Ok Da-Jung. Unlike her, Nam Jung-Gi has a timid and nice personality. He can't say anything that makes others uncomfortable. He is able to make Ok Da-Jung's blood boil.