A couple of teenagers have a son who suffers from progeria, a rare genetic disorder which makes one age exponentially faster than normal. 16 years later, the child has the body of an 80 year old in the final days of his life writing a book about his parents' love story.
Song Hye-kyo
Mi-ra
Gang Dong-won
Dae-soo
Jo Sung-mok
Ah-reum
Baek Il-seob
Mr. Jang
Heo Joon-seok
Seung-chan
Kim So-jin
Writer Kim
Cha Eun-woo
Ah-reum
Chae Seo-jin
Lee Seo-ha
