This drama is about the takeover of the Korean government in 1979 by Chun Doo-Hwan .

The story tells about two girls who envy of each other due to differences in identities and backgrounds, but after exchanging souls, they each discover their own brilliance and re-understand their own value.

In 1977, there’s a fight between soldiers and communists in a village along the border. Sak, a teacher in the village, loses his wife and his young daughter but his son is saved by Pew who later adopts him and changes his name to Tin. Because they are poor and no education, Tin starts to hang out with a gang of thieves. Tin snatches a lady’s purse and runs into the school where Sak is teaching. Sak helps him out and wants Tin to come to live with him. But once a thief always a thief and this time Tin gets arrested. Sak bailed him out and wishes to adopt him and put him back to school. But it might be too late...

Cha Do-kyung was an "it girl" and center of attention during her school days. Thanks to her looks and affluent family background, she was surrounded by many suitors and admirers. On the other hand, Jang Gong-sim, Do-kyung's friend, who always lagged far behind Do-kyung in every aspect felt inferior to her while growing up. However, Do-kyung's accidental one-night stand with Bong-hee, Gong-shim's then boyfriend, led to an unwanted pregnancy resulting in the two getting married. Fast forward 17 years, Do-kyung became an ordinary housewife with 3 kids and a good for nothing husband while Gong-shim went on to become a celebrity ballet dancer. Their reversed situation made them at odds with each other and they ended up fighting over Hyun-woo who once had a crush on Do-kyung when young. Torn between the two women, will Hyun-woo stick to his first love who became another man's wife or will he marry Gong-shim, the ugly duckling turned into the beautiful swan? Will Gong-shim's efforts to win Hyun-woo's heart be successful?

Nicknamed "Blind Hero", blind barrister Vincent Wong's four other senses are super strong. He teams up with paralegal Sisley Choi and private detective Owen Cheung to help vulnerable populations fight for justice, even if it means using borderline tactics. Barrister Kelly Cheung tries to get close to Vincent. The two end up facing each other in court. Kelly has the support of her mentor, Paul Chun. Paul had also been Vincent's mentor when he was a trainee, but their mentor-mentee relationship broke down because of a homicide case with a missing dead body. Vincent presents new evidence for the defendant's appeal and crosses swords with Paul again, igniting a series of battles! Kelly's appearance leads to subtle changes in the relationship between the "iron triangle" of Vincent, Sisley and Owen.

Former police officer Terahara Ken (Omori Nao) works for a private security firm. He is suddenly summoned back to Japan while on duty in Taiwan and ordered to protect Matsuoka Takanori (Takeda Tetsuya), the secretary general of the Democratic Party. On the other hand, public prosecutor Sakurai Satoko (Kuroki Hitomi), who was transferred to the Kochi District Public Prosecutors Office for a previous whistle-blowing incident, returns to the Special Investigation Department of the Tokyo District Public Prosecutors Office in a reshuffle by her former superior for the purpose of indicting a big shot. In the midst of this, a branch office of Tokyo’s Aoba Shinkin Bank is blown up and the bank’s armoured truck is attacked. The bomber who has set the events in motion is a young man called Aoyagi Tomoya (Seto Koji). This incident creates a link between Terahara, Matsuoka, Satoko and Ishikawa Aki (Tanaka Rena) who works at Aoba Shinkin Bank. After that, this link unexpectedly starts to extend to include Takashima Shoichi (Tamayama Tetsuji), a Hokkaido junior high school teacher; Kawamoto Rie (Mimura), a Tokyo nurse; Sawada Tsutomu (Tanaka Naoki), an Osaka apparel company employee; and Sean (Ayano Go), an IT company president.

A TV Show following 4th Gen Nogizaka to various location.