Actor Ji Sung challenges to play two roles. The tvN drama "Adamas" is the story of twin brothers Ha Woo-shin (Ji Sung) and Song Soo-hyeon (Ji Sung) fighting against giant evil hidden behind an incident 22 years ago to clear the name of their biological father. The brothers face the fact that the culprit who killed their stepfather when they were children is their biological father. After encountering the circumstances that their father, who was framed and put to the death penalty, they go after the power that tried to hide and conceal this incident, Adamas, Kairos, Choi Tae-kang, Ji Sung, Lee Soo-kyung-I, Park Seung-woo, Seo Ji-hye