Eun-jae, a children’s book illustrator, runs into Jin-woo at a bookstore. Jin-woo and Eun-jae met years ago on a train. Although each has a family to go home to, both believe that their meeting is more than coincidence and begin to see each other.
| Actor | Role |
|---|---|
 Choi Jin-silEun-jae | Eun-jae |
 Lee Kyung-youngJin-woo | Jin-woo |
 Kim Eui-sungChang-se | Chang-se |
 Kim Jeong-gyunSeung-hwak | Seung-hwak |
 Bang Eun-heeJi-young | Ji-young |
 Park Yong-suNot listed | Not listed |
 Jung Sun-kyungNot listed | Not listed |