"In 1998, a five-man gang "Baek Mei" headed by Seok-tae (played by Kim Yun-seok) kidnapped the youngest son of a powerful person. After the operation failed, they did not break up the vote. Instead, they adopted the boy as their adopted son and consciously trained him to become a killer successor. Nearly twenty years passed in the blink of an eye, and Hua Yi (Yeo Jin-koo..."