A story about the life of General Gyebaek of Baekje in the mid 7th century.

Set in the Joseon Dynasty during King Jeongjo’s reign, this martial-arts fusion sageuk is centered around the events involving Crown Prince Sado’s conspiracy. Warrior Baek Dong Soo was a real-life legend who created a martial arts guide in Joseon. His group who defends King Jeongjo is pitted against a mysterious organization of assassins who plot to kill the King.

The drama tells the story of two men who were switched at birth. Chun Dong, born of noble birth, lives his life as a slave while Gwi Dong lives Chun Dong's life as a nobleman. They both fall in love with the same girl, Dong Nyeo.

Set in a tumultuous period where the political scene is murky and various people fought to gain power and the throne, the young king will do anything to strengthen his shaky position in court. His childhood friend Baek Rok leads a secret military force loyal to the king, called the "Black Cloud Swords." Baek Rok lives for his king, his brother Baek Kyul and his lover Jung Yeon, but when his ambitious brother betrays him and leads him into a trap, he finds himself on the run. He becomes a slave and gladiator, eventually returning to Joseon to seek revenge.

This drama is set in Sungkyunkwan University during the Joseon era, revolving around the exploits and love stories of four youths. When her younger brother falls ill, Kim Yoon Hee enters the school in his place disguised as a boy in her desperation to find a way to support him, and becomes friends with Lee Sun Joon, extremely rich and the brains of the gang, playboy Goo Yong Ha and the rebellious Moon Jae Shin.

Shin Jung Hoo leads a new generation of criminal investigators that use forensic procedures and scientific methods to solve mysterious crimes, with a new focus on criminal psychology and profiling: Cha Gun Woo, a profiling expert who frequently uses his good looks and natural charm to appeal to females and elicit testimony, the rookie investigator Seo Yeon Doo, veteran Choi Do Gon, and coroner Park Choong Ok...

Secret Investigation Record is based on cases detailed in the Annals of Joseon History with a bizarre twist; these incidents incorporate mysterious, supernatural elements that cannot be explained through science. Kim Hyung Do is an inspector of the state whose single-minded focus on his investigations into administrative misdeeds bring him into direct contact with these strange mysteries. Heo Yoon Yi is a government employee who aids him and attempts to understand these scientific impossibilities with an open mind, in contrast to his cynicism.