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.


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