A Thousand Days' Promise

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  • Drama: A Thousand Days' Promise (literal title)
  • Revised romanization: Chunilui Yaksok
  • Hangul: 천일의 약속
  • Director: Jung Eul-Young
  • Writer: Kim Soo-Hyun
  • Network: SBS
  • Episodes: 20
  • Release Date: October 17 - December 20, 2011
  • Runtime: Mon & Tue 21:55
  • Language: Korean
  • Country: South Korea


"A Thousand Days' Promise" tells the story of a woman losing her memory and a man who loves her unconditionally.

Lee Seo-Yeon (Soo-Ae) and Park Ji-Hyung (Kim Rae-Won) have known each other since they were teenagers. Lee Seo-Yeon lost her father when she was only 5-years-old and her mom left her when she was 6. Seo-Yeon was left behind with her younger brother Moon-Gwon. Her aunt took them in and raised in her home.

Seo-Yeon first met Ji-Hyung through Ji-Hyung's long time friend Jae-Min (Lee Sang-Woo), who is Seo Yeon's cousin. During this time Seo-Yeon and Ji-Hyung were just acquaintances.

Now as adults, Ji-Hyung is 32-years-old and his fiancee is Hyang-Ki (Jung Yoo-Mi). Their marriage is arranged by their parents. Seo-Yeon has moved out of her aunt's home and lives with her young brother Moon-Gwon. One year ago, Ji-Hyung and Seo-Yeon's relationship developed, even though Seo-Yeon knew Ji-Hyung was engaged. They promised to see each other until Ji-Hyung married. One year later, Ji-Hyung and Hyang-Ki's wedding date is set. Ji-Hyung and Se-Yeon say their goodbyes to each other.

On that night, Ji-Hyung tells his mother that he doesn't want to marry Hyang-Ki and he is in love with someone else. His mother tells him that he has come to far now and can't back out of the marriage.

Recently, Seo-Yeon starts forgetting simple things and has headaches. She feels strange, but believes it will pass over. Meanwhile, Seo-Yeon struggles with her breakup with Ji-Hyung. Ji-Hyung also suffers through the breakup, while dragged into preparation for his wedding.

Now, Seo-Yeon forgets pretty much everything and even important appointments. She blames her condition on her recent breakup, but her condition worsens and she goes to see her doctor.


  1. Early working title was "Moolmangcho" which is a flower known in English as Myosotis and more commonly referred to as "Forget-me-not".
  2. New title is "Chunilui Yaksok" which means literally "A Thousand Days' Promise."
  3. "A Thousand Days' Promise" takes over the SBS Monday & Tuesday 21:55 time slot previously occupied by "Warrior Baek Dong Soo" and followed by "History of the Salaryman" on January 2, 2012.


1,000 Day Promise-Soo-Ae.jpg 1,000 Day Promise-Kim Rae-Won.jpg 1,000 Day Promise-Lee Sang-Woo (1980).jpg 1,000 Day Promise-Jung Yoo-Mi (1986).jpg
Soo-Ae Kim Rae-Won Lee Sang-Woo Jung Yoo-Mi
Lee Seo-Yeon Park Ji-Hyung Jang Jae-Min No Hyang-Ki
A Thousand Days' Promise-Lim Chae-Mu.jpg A Thousand Days' Promise-Kim Hae-Suk.jpg A Thousand Days' Promise-Park Yoo-Hwan.jpg A Thousand Days' Promise-Yoo Seung-Bong.jpg A Thousand Days' Promise-Oh Mi-Yeon.jpg
Lim Chae-Mu Kim Hae-Sook Park Yoo-Hwan Yoo Seung-Bong Oh Mi-Yeon
Park Chang-Joo Kang Soo-Jung Lee Moon-Gwon Seo-Yeon's uncle-in-law Seo-Yeon's aunt
A Thousand Days' Promise-Moon Jung-Hee.jpg A Thousand Days' Promise-Jeong Jun.jpg A Thousand Days' Promise-Park Yeong-Gyu.jpg A Thousand Days' Promise-Lee Mi-Sook.jpg
Moon Jeong-Hee Jung Joon Park Young-Gyu Lee Mi-Sook
Jang Myung-Hee Cha Dong-Chul No Hong-Gil Oh Hyun-Ah

Additional Cast Members:


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Episode Ratings

Date Episode Nationwide Seoul
2011-10-17 1 12.1 (8th) 14.8 (3rd)
2011-10-18 2 13.0 (7th) 16.2 (4th)
2011-10-24 3 14.3 (7th) 16.8 (4th)
2011-10-25 4 14.9 (3rd) 17.2 (3rd)
2011-10-31 5 14.9 (3rd) 17.3 (3rd)
2011-11-01 6 16.4 (3rd) 19.4 (3rd)
2011-11-07 7 15.8 (3rd) 19.3 (1st)
2011-11-08 8 16.9 (4th) 19.5 (2nd)
2011-11-14 9 15.8 (4th) 19.0 (2nd)
2011-11-15 10 16.2 (4th) 19.4 (2nd)
2011-11-21 11 15.2 (3rd) 17.7 (3rd)
2011-11-22 12 15.7 (3rd) 19.0 (2nd)
2011-11-28 13 14.6 (5th) 17.6 (3rd)
2011-11-29 14 14.4 (5th) 18.2 (3rd)
2011-12-05 15 14.1 (4th) 17.1 (3rd)
2011-12-06 16 15.0 (4th) 18.5 (3rd)
2011-12-12 17 14.7 (3rd) 18.4 (3rd)
2011-12-13 18 15.4 (4th) 18.5 (3rd)
2011-12-19 19 15.7 (1st) 19.3 (1st)
2011-12-20 20 19.6 (2nd) 23.5 (1st)

Source: TNS Media Korea / * NR denotes not ranked within the Top 20 daily shows according to TNS Media Korea.


Leave a Comment


Kinggofing (spoiler!!)

f*ck, i cant lol i cant, i just cant, i made a terrible mistake. i was about to watch this but i decided to check the ending first, it just so happened that i skipped to the part where she was putting on a diaper over her PJs. it got me crackin so bad... i know its not suppose to make you feel that way if you watch the whole thing or even just a little bit as long as you got attached the the characters somehow... but still ahahaha. I apologize if i offended anyone who really liked this drama.

Jane Its truly a tearjerking drama it made me cry so much.i miss it already,i really love the acting of kim rae won & soo-ae its genuine and natural as well as the other cast.I still cant get over to this drama till now though its almost 7 months since it was aired in the Philippines.Hoping to see them again kim rae won & soo ae for another drama because what i like the most aside from the story is theyre superb acting.To God be the glory.

Rosie I watched this drama several times for it tug to my heart and made me thing of the possibility that I may be in such a situation. I already knew the devastating effect of the disease so I could relay and appreciate how realistic the acting was. I congratulate the cast, the director and everyone who made this drama possible. This is THE best drama and the best acting of the main characters I saw.

The topic itself is heart wrenching and may not appeal to many people , but a necessary one to share with the public. Thank you SBS for having the courage to showcase such a topic played superbly by Soo-Ae and Kim Rae-Won. They deserve awards for their acting.

Now that the Korean Drama audience is global, please let us have more of social drama issues that the global viewers, I am one of them could relate to and not just be entertained.

I give it A++++.......

Yan I just finished watching this drama. It was heartbreaking seeing her not even recognizing Herself in the mirror. I loved the plot, I just hoped they showed How she died. I really thought her first book would be the one she Was writing on her laptop when she was still sane.

soheila This is one of the best and realistic films that I have ever seen...I love the actors and the film very much .... the acts are wonderful and outstanding.

Ruby Best korean drama I've ever seen. This was beautiful written/directed and the superb Acting... to the beautiful Soo Ae might i add is one of my favourite korean actress is so talented and Kim rae won...I shed so much tears watching this drama.

 Such a beautiful story.

John This is one of the best Korean dramas I've seen both in terms of the story itself and the acting. The slow, but inevitable decline due to Alzheimer's is shown with a lot of dignity and realism both. The sacrifices made and the human drama of all the characters is very believable. The ending was a bit sudden though and that is my "only" complaint. Basically they skipped the final stages of the disease or the relationships of the other main characters after the death of Soo-Ae could have been developed a little bit. Basically Soo-Ae is not quite in the final stages of Alzheimer's when the very next scene moves to her grave and obviously a couple or a few years later. Although it is stated in the film that the end is nearing for Soo-Ae based on her behavior at that time she is far from the end (for anyone who knows about the stages of Alzheimers... she probably has 2 years or so left to go or even more - she still has moments of clarity and speaks coherently off and on in spite of the severe memory loss and bouts of depression and anger... and wandering off). BUT, besides this criticism I still give this drama an A+. Very Well Done...

non sibi I just finished watching this drama. I like watching a drama that has a plus impact. This is a story on JHPark and SYLee unconditional love. I translate this story on how God loves us regardless to our circumstances, our shortcomings, such as SYLee who suffers from dementia /Alzheimers, JKPark still loves his wife and chose to be beside her through the end. The last scene is very touchy, where he and his daughter visit his wife’s grave, he said that he is not ready for her leaving him behind. Good work of drama director, screen writer, actors, actresses, and all team members.

Korea Fever Nice story plot in this drama.... Daebak!!! If you like this drama, you can watch "A Moment to Remember" Movie...^^

Sounak My Girl and I is also worth mentioning

Alicia Lourdes I just finished watching the drama and could not help but shed tears!! The drama is so heartbreaking....beautifully done - congratulations to the director and the script writer!! Hats off!! The actors/actresses are really good! Kim Rae Won moved me to tears and Soo Ae is such a good actress - the different emotions were done superbly! They complement each other!! Love this drama!

tess i love this drama.....i made me cry so many times...especially when Rae-Won cried his heart out in the bathroom and had to cover his mouth so that Seo Yeon won't hear....a lot of episodes were so tearful ...good drama, outstanding performances from all the actors and actressess....am a filipino and am so addicted with k-dramas.....thumbs up to all of you!!!....keep on making one like this....:)

lydia the disease made me scared. it's worse than cancer. my heart bleeds whenever i think what if it happened in real life. but i admire every character in the story. the story tells the whole world how love could be so unconditional. the acting of kim rae won was great. he never exagerrates his crying scene. his portrayal would let the women wish to meet a person like him. but the story also tells us that alzheimer disease is fearsome, hopeless.

Dame Uli Wira. anyone say how the ending of this drama? OMG this is the best korean drama I've ever watch. But in my country, Indonesia, I've been watching 14th episodes, and every episode makes me falling my tears.

jb the main actor and actresses faces look very similar. haha. but they're both great at acting.

rainfairy OMG!im so sad that song seung hyun was not in this drama.he is the best.he is goodlooking and his acting is awesome.i love this drama but while watching it i keep thinking it would be perfect if it was him. good luck seung hyun oppa!you are the best. i loved you from the very first time that i saw your acting.

smileyme love this drama so much because this drama so realistic and oh the script so real and raw. soo ae is great actress along with kim rae won they make such a good chemistry

LeeB Soo Ae, she makes me cry many times. She is a great actress, I love her!!!

Tina Wow, this drama is one of the most mellow drama since Stairway to Heaven and Winter Sonata... Two thumbs up for Soo Ae and Kim Rae Won !! Great Acting !! Makes me cry...

ursula its a wonderful drama,i can`t helf my self to cry,meanningful drama.watching this drama even to those people who don`t know yet what is the true meaning of love,im verry sure they will gonna learn from this drama,love it means you will stay beside the person you love no matter what happened or come what may...to all the cast of this drama series goodluck to all of you..i wish and hope that you can make again a good and meaningful drama,i was not only enjoying myself while watching this drama at the same time ì`ll lear a lot thank you for the effort to make a wonderful drama serieslove you all. ..god bless to all of you ....

ade a little bit surprise to see song chang-eui came up on episode 15 since he isn't mentioned as one of the cast here. a bit hard for me to see chang-eui & sang-woo came up together not as a couple anymore ahahaha....

ronald villaflores Please vote for korean drama for this blogspot koreandramapoll blogspot

Banu Well unfortunately for you "N.OConnor" Cast changed it's now Soo-Ae and leading man is my fav" Kim Rae Won" with his comeback.. i'm looking forward for this and I am sure even if Seung Heon got the role he would have played beautifully

N. OConnor Song Seung heon, I wish you the best and whatever the outcome may be, it will be to your advantage, I'm sure. They couldn't have picked a more talented and better looking actor than yourself, to play the leading role in "Forget-me-Not." This is wonderful news to the huge following of yours and we all look forward to seeing you back on the screen. Kamsahamnida Seung heon :->*!!

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