Rain will be taking up the role of Uhm Bok Dong, a cyclist whose career reigned from the 1910s-1930s in Korea, during a time when Japan attempted to conquer Korea and launched cycling competitions between Korean and Japanese cyclists, and Uhm Bok Dong was able to thwart Japan's plans by claiming the victory against competing Japanese cyclists.�

Actresses Kang So Ra, Min Hyo Rin, and Park Jin Joo have also been cast for the film, while actor Lee Bum Soo will not only take part in it's production, but also play the role of Uhm Bok Dong's mentor Hwang Jae Ho.�

'Uhm Bok Dong' will begin filming in April.�