My Best Friend's Game: Vengeance on the Devil

Yuri falls in love with Jaeseop after going on Eunwoo's blind date, but she sets up Eunwoo to marry him due to unavoidable circumstances. On her first wedding anniversary, Eunwoo finds out about an affair between Jaeseop and Yuri, and even her new lover, Minhyuk, turns out to be a stepbrother of her husband. Completely torn apart by lies and betrayals, Eunwoo puts bloody revenge in motion.