Four very different couples with very different problems, needs, and concerns face up to their worries and obstacles at the start of a brand new year. Ji Ho is a divorcee police detective from a violent crime unit who meets Hyo Young.

Ms. Jung wants to know how Sung Min will die, and she tells Tae Pyung that she doesn't want to see him die before her death. Sung Min wants to know who is going to kill him. Tae Pyung tries to stop Sung Min's death, but it's not easy. Meanwhile, Tae Pyung encounters Joon Young at the hospital, but he can't see her death in her eyes.

Yoon So-So works as a travel guide in France. She leads a group of tourists on a package tour. The travelers all have their own stories. San Ma-Roo joined the tour after being dumped by his girlfriend. Kim Gyung-Jae has been dating for the past 10 years. A mysterious man seems to follow Yoon So-So. Jung Yeon-Sung joined the package tour with a partner, but he will not reveal what kind of relationship they are in. Han So-Ran is a web designer and agonizes over staying single or marriage. Oh Gab-Soo is extremely stubborn. Han Book-Ja spent most of her life taking care of her husband. Na Hyun is a woman whom other people cannot guess her age. They all do not want to become involved in each other's personal lives, but, while they travel together, they become closer and develop relationships.

Although born in the same year, two childhood friends end up being 13 years apart because they have aged surprisingly at different places (worlds) for some strange reason. Now Eom Hyeon Soo is a 31-year-old woman but Sung Hae Sung is still a 18-year-old boy. Cha Won Yooung is a chef also interested in Eom Hyeon Soo.

Gu Family Book is a 2013 South Korean television series starring Lee Seung-gi and Suzy. The fusion martial arts action historical drama is about a half man-half monster who is searching for a centuries-old book that according to gumiho legend, contains the secret to becoming human. It aired on MBC from April 8 to June 25, 2013, on Mondays and Tuesdays at 21:55 for 24 episodes.

Jun-shik, who works for Tatsuo’s grandfather’s farm while Korea is colonized by Japan, dreams about participating in the Tokyo Olympics as a marathon runner. Tatsuo also aims to become a marathon runner, so the two become rivals. But the war breaks out and they both are forced to enlist in the army. Tatsuo becomes the head of defense in Jun-shik’s unit and he devises a scheme but fails. Jun-shik and Tatsuo are held captive by the Soviets. They run away but soon are captured by the Germans and forced to separate. In 1944, they meet again on the shores of Normandy.