The fierce survival and success of a female slave in the Joseon Dynasty, and the story of a woman whose name, identity, and even her husband were all fake.
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.
An ingenuous home-shopping host Yong Sujeong dreams of becoming a successful businesswoman who wins people before money. After losing her parents as a kid, she travels around the country with tinker Yong Jangwon and grows up as a strong woman full of courage. She may look fierce on the outside, but in fact, she is a softhearted, clumsy crybaby and a dork who cannot even make eye contact with her crush, Ju Ujin. Meanwhile, there is Yeo Uiju, a man who gets on her nerves by loafing around her. As a soldier, he is more logical rather than empathetic, but he passes out whenever he gets drunk. He loses his face after meeting Sujeong, who drinks like a fish, but he starts to fall for her. By a twist of fate, he realizes he is the second grandson of Masung Group, and his older brother is Sujeong's crush, Ujin.
In an alternate-reality South Korea, where a constitutional monarchical system prevails, Oh Sunny, a musical actress, becomes the empress of the country. Thus begins a dispute for power in the royal palace. Nothing is what it seems, and Oh Sunny is ready to fight until the end to uncover a mysterious homicide within the royal palace, fighting to protect those she loves the most and obtain happiness.
Nam Shin is a son from a family who runs a large company. After an unexpected accident, he falls into a coma. His mother Oh Ro-Ra is an authority on brain science and artificial intelligence. She creates an android named Nam Shin III which looks like just like her son Nam Shin. The android pretends to be Nam Shin and he has a bodyguard So-Bong.
A high school boy falls off of the top of a building and lapses into a coma. A detective and his school teacher attempt to get to the bottom of the incident.
As a child, Park Hoon and his dad were kidnapped and taken to North Korea. He grew up there, learning to be a doctor just like his father. When Park Hoon escapes back to South Korea and begins work at a prestigious hospital, he makes it his goal to earn enough money to go back to North Korea to rescue his true love. He'll do anything to find her, but then he meets and falls for a mysterious woman who looks exactly like her.
Kim Min Gyu has wealth and success, but lives an isolated life due to his allergy of people. He then meets and falls in love with a girl who is pretending to be a robot for her ex-boyfriend, a genius robots professor.
Goo Jae-hee lives in the United States and one day sees a track and field competition on TV, and becomes attracted to one of the high jump competitors, Kang Tae-joon. She begins to idolize the young athlete and eventually transfers to Korea to attend the same school that Tae-joon attends after he suffers an accident that could potentially end his career. There is a catch, however: Tae-joon attends an all-boys high school and Jae-hee must disguise herself as a boy to enter.
A romance takes place between Kang Ji-Sung aka Louie and Ko Bok-Sil. Louie is from a rich family, but he has lost his memory. Ko Bok-Sil is a woman with a heart like an angel. Louie learns about true love after meeting Ko Bok-Sil.
Choi Kang Chi is a half-beast and half-human and was adopted by a merchant Park Mu Sol when he was a infant. Kang Chi has a kind of unusual power. Dam Yeo Wool is the daughter of Dam Pyeong Joon who is the owner of the Invisible Knife Moo Kwan and also a patriotic warrior. Kang Chi and Yeo Wool meet and fall in love with each other. However, there is hatred between their fathers. Jo Gwan Woong is a traitor. He uses his power to frame faithful and upright individuals and obtain profit for himself. His criminal plots are destroyed by Kang Chi time and again. Therefore, he is determined to kill Kang Chi through different ways. Kang Chi is troubled by his identity but stands up for justice.