Originally, this TV title was 'White'.
The first reunion in 4 years of Bae Yong-Jun and Choi Jee-Woo, since the TV drama First Love (1997).
Hee-Seon Kim was considered role of Yoo-Jin Jung.
Siwon Ryu was considered a lead role but turned down the role.
In Japan, this drama was remake in animation series, Bae Yong-Gun, Choi Ji-Woo, Yu Seung-Soo reprise them role.