A drama detailing the life of King Gwanggaeto the Great, who restored the glory of Goguryeo by wresting power back from Baekje, which had invaded Goguryeo prior to Gwanggaeto's birth and dominated East Asia under the rule of King Geunchogo.

Lee Kang Joo is a single mother who was abandoned by her previous boyfriend, Yoo Ho Nam. Ho Nam forgot that Kang Joo was pregnant with his child and went abroad to study. When Ho Nam returns to Korea, he wants to pick up where he left off his relationship with Kang Joo. However, Kang Joo, is not as willing to start over with Ho Nam. Choi Seung Hun is the son of Jung Soo Hee who is Kang Joo's mentor and boss. He has been pursuing Kang Joo for a while and hits a roadblock when Kang Joo's ex returns.

Kim Bum Sang is a arts scholar who is crazy about virgins and is a supervisor of property assets. Heo Cho Hwi is a 29 year old woman who is always mistaken as someone who is crafty because of her natural-born sexiness. The story will be about how these two cross paths and how their chance meeting will cause turmoil for the both of them.

Geum Na Ra (Park Shin Yang) is a ruthless private moneylender. Seo Joo Hee (Park Jin Hee) is a righteous woman. When problems with her family's debts arise, Joo Hee was supposed to marry a divorced man to solve her family's financial problems. But on the day of the wedding, Geum Na Ra shows up to collect the debts and ends up ruining her plans. Joo Hee vows to take her revenge on him but she falls in love with him instead. Ha Woo Sung (Shin Dong Wook), also a moneylender, is a handsome young man who seem to have no worries in life. He and Geum Na Ra are rivals, in business and in love. Lee Cha Yeon (Kim Jung Hwa) is a money banker.

Gina (Hyo Ri) is a welder in a steel mill with a felony wrap behind her. With her tag as an ex-felon, she struggles to maintain any semblance of average normal life of an everyday civilian. This is a story about her trials and tribulations and how she deals with the obstacles that are thrown at her all the while maintaining a chaotic relationship with her rebellious boyfriend...

Ma Young-Hee (Kim Jung Hwa) has been in love with her best friend Han Jin-Woo (Yeon Jung Hoon) since the first time they met in high school. Han Jin-Woo, on the other hand, does not see Ma Young-Hee's love for him and blindly goes out with other girls in front of Ma Young-Hee. On a trip to Japan, Young-Hee meets a young man on the street who takes her back to his apartment since she is drunk. Young-Hee accuses this man of raping her even though he didn't, but before she can rightfully press charges, he runs away as the government officials of Japan chase him down for an expired visa. Upon returning to Korea, Jin-Woo stops by her apartment and introduces his younger brother, Han Sun-Woo (Lee Wan) who just happens to be the young man she met in Japan. Jin-Woo asks if Sun-woo may stay at her place, and Young-hee accepts out of love for Jin-Woo. The story unfolds as a sudden high school classmate of Young-Hee, Jang Hee-Won, (Oh Seung Hyun), begins to court Jin-Woo.

Kim Jung Hwa is a young and sincere middle school teacher, who has little interest in money. She is also extremely warm-hearted and loves to help other people. When she helps carry an elderly man's belongings from the train to another location, the elderly man is extremely thankful. This grandfather turns out to be the extremely rich owner of a well known conglomerate. His grandson, Kang Dong Won is a quick-tempered businessman who rivals his grandfather, but in an almost comical way. In an order to "tame" his favorite grandson, the grandfather agrees to give his entire fortune to the person who marries Kim Jung Hwa, therefore forcing Kang to meet the girl whom his grandfather chose. Although at first Kim and Kang don't get along because of Kang's extremely cute but bad temper, their arguments bring them closer together. Kang starts to get jealous when Kim's fellow teacher starts liking her too. Through the clever conditions that Kang's grandfather makes, Kang starts a relationship he does not look forward too. However, what looked like a relationship that would 99% not work out, turns out to be the "perfect" match, the 1% chance.