Kim Seo-Jin is a man who is driven only to achieve success in his life. Thanks to his efforts, he is the youngest executive at his company. His life is perfect, with his beautiful violinist wife Kang Hyun-Chae and a daughter. His wonderful life comes to a halt when his young daughter is kidnapped. He falls deep into despair. To change the past, when his daughter was kidnapped, he contacts Han Ae-Ri approximately one month in the past. Han Ae-Ri has busy days with her studies and working a part-time job to make enough money to pay for her sick mother's operation. One day, her mother suddenly goes missing. Han Ae-Ri falls into despair, when Kim Seo-Jin from the future contacts her.
as Kim Seo-Jin
as Han Ae-Ri
as Seo Do-Kyun
as Kang Hyun-Chae
as Im Gun-Wook
as Kwak Song-Ja
as Yoo Seo-Il
as Lee Taek-Kyu
as Kim Da-Bin
as Park Soo-Jung
as Jung Hye-Kyeong
as Park Ho-Young
as Choi Deok-Ho
as Lee Tae-woo
as Kang Byung-Suk
as Kim Jin-Ho
as Han Tae-Gil
