Nam Hyun-joo – Starring Han Hye-jin

Woman who searches for love at the end of her life
A part of her was always afraid of diseases after she lost her mother to brain tumor as a child. She meets Do-young, gets married and is as happy as can be. However, she is diagnosed with the same disease as her late mother. Around the same time, her husband’s first love, Da-hye returns to Korea. Under these unexpected circumstances, Hyun-joo leaves to spend time searching for love during the last three months she has left to live.

Kim Do-young – Starring Yoon Sang-hyun

Architect, who dangerously walks a tightrope between his wife and his first love
Once called a genius architect in the industry, but he fails to compromise and accept the reality. Right when he is about to grab an opportunity to make a huge comeback, the most dangerous woman in his life shows up. It’s Da-hye, his first love, and she is back after a decade. When she shows up, his dream and the relationship with his beloved wife Hyun-joo are all at risk like a house of cards.

Shin Da-hye – Starring Yoo In-young

Do-young’s first love that shows up after 10 years
She is the smart director of an American financial company who has money, status and the looks. She uses her position to control Do-young, who is planning a comeback. Unlike her perfect outer appearance, she has scars and pain she can’t share with anyone.

Jang Seok-joon – Starring Kim Tae-hun

Hyun-joo’s doctor, who dedicates his life to brain tumor research after losing his wife
Feeling guilty about not being able to save his wife’s life, he cares about nothing other than developing a cure for brain tumor. He meets Hyun-joo, who has brain tumor just like his wife and decides to do everything he can to save her life.