Yang Se-jong is playing double roles.
On the latest episode of the OCN drama "Duel", Lee Seong-joon (Yang Se-jong) reacted aggressively to his own picture.
Jang Deuk-cheon (Jeong Jae-yeong) claimed Lee Seong-joon has a twin and asked for an investigation on his accomplice. In the end, Choi Jo-hye decided to conduct a lie detector and brain wave check.
Lee Seong-joon didn't react to any picture. Choi Jo-hye was about to end the check when Jang Deuk-cheon asked for one more picture.