As O-gong prepares to sacrifice himself in place of Seon-mi, Devil King Woo, feeling sorry for both, tries to solve the mystery behind the Geumganggo.

Cast: Lee Seung-gi, Seung-Won Cha, Yeon-Seo Oh, Hong-ki Lee, Gwang Jang, El Lee, Sung Hyuk, Jung Je-Won, Seong-oh Kim, Se-yeong Lee, Ji-ru Sung, Bo-ra Yoon