A Thousand Days' Promise (2011)
The 2011 South Korean drama A Thousand Days' Promise centers on a lady (Soo Ae) who is losing her memory and the devoted guy (Kim Rae-won) who remains at her side. It has 20 episodes that aired on SBS every Monday and Tuesday at 21:55 from October 17 to December 20, 2011, and was written by renowned drama writer Kim Soo-hyun.
Lee Seo-yeon, a free-spirited woman, is having a secret affair with Park Ji-hyung, an architect who has a fiancée. Upon hearing that Ji-hyung's parents set the date for his wedding, Seo-yeon splits up with him. She receives a diagnosis of early-onset Alzheimer's, a very improbable condition for a 30-year-old woman, so she has little time to mourn her traumatic separation. Just two days before the wedding, Ji-hyung learns the surprising information and decides to return to his ex-girlfriend.
He never loses up on her and marries her right away against the adamant resistance of his parents and even Seo-yeon herself. The loyal husband is committed to caring for his unwell wife who is deteriorating her memory. The pair makes an effort to hold onto their love and feel it till the very end despite her unpleasant condition. Even though they are both well aware that a horrible end is coming for them, they have a daughter and occasionally find happiness in their marriage.
Detailed information:
Starring: Soo Ae, Kim Rae-won
Original release: October 17 - December 20, 2011
Link to watch: imdb.com/title/tt2262521/
