Stairway to Heaven S01 E20 Episode 20

"A heartbreaking love story between four men and women that can only be called fate."

Tae Hwa lies to Jeong Seo that he'd go to France to study art and kills himself to donate his corneas to her. After receiving a cornea transplant, Jeong Seo starts to see things again. Jeong Seo and Song Ju spend a happy married life and even launch a foundation which they name after Tae Hwa. And Jeong Seo suddenly feels sick again.