Seulpeum boda do Seulpeun Iyagi (슬픔보다 더 슬픈 이야기). Is it More than Blue or Sadder than Sadness? No matter what! The movie is really sad and it made me cry. The movie is directed by Won Tae-yeon, starring Kwon Sang-woo, Lee Bo-young and Lee Beom-soo. Kwon Sang Woo whose nicknamed Kay (as in letter K in English alphabet) and Lee Bo Young as Cream. They are both orphans. Kay has abandoned by his parents when he was young and Cream lost her family in a traffic accident. They met in High School and lived together. They have mutual feelings but couldn't get married because Kay has a cancer and didn't let Cream know about it. Instead, he wished that Cream would live happily with someone that could give her a good life.
Cream pretended that he loved Joo Hwan (Lee Beom Soo), a healthy and kind dentist. It is just to grant Kay's wish for her. But Joo Hwan has a girlfriend so Kay talked to her and asked her to leave Joo Hwan. He told her about his situation and Joo Hwan's gf agreed but in one condition. If she could take pictures of him.
Cream got married and Kay died without knowing that Cream knew about his situation. She got married to grant Kay's wish. But after the death of Kay, Cream also died. It is to follow Kay and make her promise to him to be with him forever even after death.