The film mainly follows the famous 1597 Battle of Myeongryang during the Japanese invasion of Korea 1592-1598, where the iconic Joseon admiral Yi Sun-sin managed to destroy a total of 133 Japanese warships with only 13 ships remaining in his command. The battle, which took place in the Myeongryang Strait off the southwest coast of the Korean Peninsula, is considered one of the greatest victories of Yi.

Baek Beom has worked as a forensic doctor for 10 years. He has a bad personality, but he is excellent with his work. Baek Beom does not open his mind to other people. Eun Sol is a rookie prosecutor with a warm heart. She has a bright personality and she comes from wealth family background. The forensic doctor and prosecutor work together to solve cases.

Cha Dae Woong accidentally releases a troublesome Gumiho, a legendary fox with nine tails, sealed inside a painting. Fleeing the scene, Dae Woong suffers a life-threatening fall and is only saved by the Gumiho, who gives him her "fox bead". When Dae Woong awake and meet a mysterious pretty girl, he initially treat her as eccentric or mentally ill, before fully understanding that she is a Gumiho in disguise. He agrees to stay with her and he tries to keep her happy, while hiding her true identity as a Gumiho from others by introducing her as his friend, Mi Ho. Slowly, however, he becomes less scared of her and more protective of her, and finally admitting to himself and to her that he loves her. As the story unfolds, Mi Ho pursues her goal of becoming human and stays with Dae Woong.

A historical drama set in the Koryo dynasty and focused on the relationship between a king and his bodyguard. Under the dominance of Yuan Dynasty China, the king of Goryeo Dynasty Korea is pressured to produce a successor to the throne. Unable to make love to his queen because he is in love with his bodyguard, Hong Lim, the king asks the two of them to sleep together instead. This sexual contact formulates a forbidden love between Hong Lim and the Queen.