In January 2017 , Yang played the roles of young Song Seung-heon and Lee Young-ae 's assistant in SBS 's historical drama '' Saimdang , Memoir of Colors '' . The same year , he starred in OCN 's sci-fi thriller '' Duel '' , gaining praise for his portrayal of three different characters . He then starred in the romance series '' Temperature of Love '' by Ha Myung-hee , which won him the Best New Actor award at the SBS Drama Awards , Baeksang Arts Awards and the 6th APAN Star Awards . Following his acting roles , Yang experienced a rise in popularity and was labeled " monster rookie " by the press
6th APAN Star Awards
6th APAN Star Awards
Yang Se-jong