Unforgettable

Through the course of their lives, a man and his first love are repeatedly separated from each other because of circumstances out of their control.

A story about the love and friendship that takes place in an era where a man and a woman communicate through radio by chance.

Tae-il lives a fast life as low level thug. He then learns that he has a terminal illness and not much time left to live. Then, for the first time in his life, he falls in love.

On her first day at work, Areum replaces a woman who broke up with the boss. The wife of the boss finds a love note, bursts into the office, and mistakes Areum for the other woman.

Sunhi, a film major graduate, visits her school to ask her Professor Choi for a recommendation letter to study in U.S. Knowing the professor favors her, she expects a good recommendation from him. Out from her shell after a long time, Sunhi also ends up meeting two men from her past: Munsu, her ex-boy friend, and Jaehak, a director who graduated from the same film school. Through the encounters between Sunhi and the three men, they give each other an 'advice on life' with good intentions. The three men who all have strong interests in her are led to guess and define her, unable to tell how she really feels inside. Strangely, the mentioned advices and traits of her are similar and seem to pass from one person to the next. The words of 'advice on life' seem doubtable and slip away as the three men's thoughts on Sunhi become more and more irrelevant.

In 1999, a teen girl keeps close tabs on a boy in school on behalf of her deeply smitten best friend – then she gets swept up in a love story of her own.

When a high school diploma becomes the key to unlocking his inheritance, a spoiled teen gets an invaluable lesson in life and love in a rural village.

Yu-jeong is suicidal, yet she reluctantly goes to prison for volunteer work. There, she meets a prisoner who is waiting for death penalty. The two quickly fall in love despite their differences, yet they do not have much time.

A terminally ill man tries to find a suitable husband for the friend he has loved since childhood.

A college student befriends two cute girls his age. He loses contact with them. He tries to find them years later.

A recording engineer falls for a radio announcer after they work together to capture sounds of the natural world.

Ji-hae's friend is having problems expressing her feelings to the boy she loves, so she asks Ji-hae to write e-mails to him in her name. As the boy falls in love with her letters, Ji-hae discovers the story of her mother's romance which is remarkably similar to her own circumstances.

After losing both her parents, Failan emmigrates to Korea to seek her only remaining relatives. Once she reaches Korea, she finds out that her relatives have moved to Canada well over a year ago. Desperate to stay and make a living in Korea, Failan is forced to have an arranged marriage through a match-making agency.

Su-ho is a plain high school boy, and Su-eun is a bright and beautiful girl in the same school. For some unknown reason, Su-eun has a crush on the boy, and for equally mysterious reasons she rescues Su-ho in the sea though he doesn't know who actually saved him.

When filmmaker Young-soo introduces writer Soo-jung to his friend Jae-hoon, he unintentionally creates a love triangle. While Jae-hoon pursues Soo-jung, Young-soo clashes with his crew. Yet, just as the story appears to end, it starts all over again, this time with plenty of variations.