Home People Yang Se-jong Yang Se-jong shows Yang Se-jong shows Yang Se-jong TV Shows (8) My Country: The New Age (2019) As Seo Hwi, He was 26 years old Coffee Friends (2019) As Himself, He was 26 years old Still 17 (2018) As Gong Woo-Jin, He was 25 years old Temperature of Love (2017) As On Jung-Sun, He was 24 years old Duel (2017) As Lee Sung-Joon / Lee Sung-Hoon, He was 24 years old Saimdang, Memoir of Colors (2017) As Lee Gyeom (young), He was 24 years old Dr. Romantic (2016) As Do In-Bum, He was 23 years old Dr. Romantic (2016) As Do In Bum, He was 23 years old
