5 titles, most popular first
When Eun-joo moves out of a seaside house called Il Mare, she leaves a Christmas card in its mailbox for the next tenant. Sung-hyun, an architecture student and the house's very first resident, finds the card dated two years in the future. Writing back and forth, the two realize the mailbox links them across time.
Yoo So-joon, who runs a real estate firm, can travel through time using the subway. After glimpsing his own death in the future, he marries Song Ma-rin, an amateur photographer, hoping that being with her will help him escape that fate.
Choi Ban-do and Ma Jin-joo are 38, married with a young son, and worn out by unhappy lives: he is an overworked pharmaceutical salesman, and she is a lonely housewife. After their marriage hits a breaking point, they wake up as 20-year-old university students and decide to make different choices this time.
As a child, Kim Hye-ja found a special watch on the beach that can turn back time. When she uses it to try to save her father from a car accident, she learns the cost: each time she rewinds time, she grows older. Meanwhile, Lee Joon-ha, a young man she shares a close friendship with, has given up his dreams under the weight of family troubles.
Kang Baek-ho and Ham Yi-seul have been close friends since their elementary school days, but he never admitted his feelings for her. At her wedding to another man, Baek-ho is full of regret, until a mysterious conductor gives him the chance to travel back to moments from their past and try to change how things turn out.
