Overview
A man and a woman realize they are separated by two years of time when they exchange letters from different years in a mailbox.
Cast
- Gianna Jun as Kim Eun-ju
- Lee Jung-jae as Han Sung-hyun
- Kim Mu-saeng as Professor Han
- Cho Seung-yeon as Jae-hyeok
- Min Yun-jae as Jeong-suk
- Kim Ji-mu as Ji-hun
- Choe Yun-yeong as Hye-won
- Hong So-yeong as Voice Actor
- Nam Jung-hee as Eun-ju's Mother
- Lee In-chul as Real estate