Black Knight is a love story between a woman who is waiting for the love of her life and a man who is willing to do anything to protect his love. The story spans over two hundred years. Moon Soo Ho is a businessman with a pure heart, but he never shows his true colors to anyone except for Jung Hae Ra, a travel agent who has never traveled abroad. Soo Ho and Hae Ra grew up like siblings in Hae Ra's house, but they got separated later. They meet each other after they grow up and love approaches them as if it were fate. Will their love survive despite all the faltering events?

Yoon So Ah (Shin Se Kyung), a pragmatic neuropsychiatrist, struggles with her family’s ancient duty to serve Ha Baek (Nam Joo Hyuk), a reincarnated water god. As So Ah navigates her demanding medical practice and the burden of this strange legacy, Ha Baek begins to develop feelings for her. However, their relationship faces complications from Hoo Ye (Im Joo Hwan), a CEO who clashes with So Ah over land but falls for her, and Moo Ra (Krystal Jung), a goddess from the Water Kingdom who resents So Ah for capturing Ha Baek's affection. Meanwhile, Bi Ryeom (Gong Myung), a wind god with unspoken feelings for Moo Ra, adds to the tension. Can So Ah and Ha Baek's unusual relationship withstand these celestial rivalries and find a future together? This 2017 South Korean drama was based on the webcomic by Yoon Mi Kyung and was directed by Kim Byung Soo.

Cho Rim comes home from school and finds out that her parents were killed by a serial killer. She also gets into a car accident while running away from the killer and stays in a coma state for six months. When she wakes up, she doesn\u2019t remember what happened in the past or her own name. And she gains a supernatural power that enables her to see smells. Moo Gak, a detective, also loses his younger sister named Eun Seol, to a murderer. He gets a big shock and loses consciousness, which takes him six months to regain consciousness. Without knowing each other\u2019s painful family loss history, Cho Rim and Moo Gak meet each other, and Cho Rim\u2019s ability becomes a big help to Moo Gak, and they become very close.

Hong Bin has a harsh and twisted personality under the influence of his oppressive father and memories of his failed first love. Not only that, but those wounds have damaged his psyche so that in a state of extreme anger and agitation, sharp spikes like blades come out of his whole body. Hong Bin, unable to forget his first love, Tae Hee, while tracking her down, ends up meeting Se Dong. Hong Bin feels drawn to Se Dong, who is confident and upbeat even in front of his harsh self.

Tae Sang left alone after his mother's extramarital affair and, consequently, his father's death lived through a deprived childhood. He rose to second in command with the help of his mafia boss but is betrayed by him out of jealousy and suffers a near-death crisis. In the end, he rises to the top after eliminating his boss and becomes a successful businessman on entering the loan industry. He plans to prepare a cultural business for the woman he loves, Mi Do. Mi Do, well-rounded and accomplished, grew up strong-minded despite her family's poverty. Being aware of others' snobbishness, she is full of ambition to live a lavish life others will envy but feels the wall between her desire to rise in status and reality. Mi Do, who had received Tae Sang's support, realizes his thoughtfulness was actually loved. About to consider even marriage, she develops feelings toward Jae Hee, who she met while on a trip as if he were her destiny. While he has feelings for Mi Do, Jae Hee wishes to repay Tae Sang, who helped him attend a prestigious university and become confident in his own right.

A third-rate designer who makes and sells counterfeits in Dongdaemun, previously unable to put his formidable talent to proper use, at a certain special opportunity becomes a big shot in the fashion industry. Meanwhile, Lee Ga Young, after losing her parents who had been successful designers in Dongdaemun and even losing their shop, having spent her life in a small room only sewing, tries her utmost to come out of a life of poverty. Two young people struggle to come out of difficult circumstances and on the other hand, the heir of the country's top fashion industry conglomerate Jung Jae Hyuk won't stop at any means to keep his position. In the end, what will become of the future of the three who try to succeed as world-class designers?

Lee Do is the third son of King Taejong of the Joseon dynasty. He becomes Sejong the Great, a well-known king with brilliance, but he is deeply traumatized as he has seen massacres committed by his father since he was young. Being a workaholic and an insomniac, he strives day and night to understand ordinary people and become a righteous king. Chae Yoon comes from a family of slaves, but he has become an officer working in the Royal Guards. He thinks his father died because of Lee Do and plans to take revenge on him. So Yi is the court maid that Lee Do's son loves. Although aphasic, she is smart, insightful, and passionate about creating the Korean alphabet. Ki Joon earns Lee Do's trust and gets involved in his project to create the Korean alphabet, but he secretly plans to stab Lee Do in the back. With all these people entangled with each other, serial murders happen at the palace, and the project to create the Korean alphabet doesn't go smoothly.

Soon Jae's family consists of three generations living under the same roof. Soon Jae's daughter Hyeon Gyeong, her husband Bo Seog, her younger brother Ji Hoon, and her son and daughter Jun Hyuk and Hae Ri all live together. There is not much solidarity among the family members, though. They only take care of their own business without consideration for others. Ja Ok is living next door. Even though her family is not related by blood, they have a strong bond among them. Jung Eum, who is Jun Hyuk's tutor, Julien, In Na, and Kwang Soo are living as a family in Ja Ok's house. This family welcomes new members, Sae Kyeong and her sister Shin Ae. They have come to Seoul to escape from creditors and start to work as housekeepers in Soon Jae's house, which leads to a new phase in the story of this family.