He is the star of "The Age of Wild Men" that brought Kim Doo-han into Jong-ro. No one is able to hold onto their lives before Dual Wielding Swordsman's fists, which are deadlier than a knife. The legend of Joseon's greatest Dual Wielding Swordsman begins.

Kim Young-joo is a genius with an IQ of 200 and the youngest editor of a fashion magazine. Constantly embarrassed and ashamed of her mother's developmental disability and suffocated by her affection, Young-joo leaves home and runs away to get married. But after she gives birth to her own daughter and becomes a mother herself, Young-joo begins to see her life and family differently.

Kim Jun is the son of an escaped palace slave, who gets raised by monks. Years later, after being torn from his home during wartime, Kim Jun must renounce hispacifist ways to partake in a deadly game that could be his ticket to freedom from his masters, Choe Chung-heon's clan. During the Mongol invasions of Korea, Kim Jun rises in the ranks to become the top military official, and eventually rules the Goryeo empire for 60 years in place of its king.

Lee Gang-sik sits in jail with a life sentence because of murder. His good behavior the last 15 years earns him the opportunity to be released for one day & visit his family. But how will his son, whom he let down for 15 years, react?