Learn how to survive in the devil's world!!

As a child, Woo-young and his sister were mistaken as orphans and were sent to an orphanage, where he had been abused and lost one eyesight due to severe beating. Years later, Woo-young seeks out vengeance and tracks down and kidnaps the former chief of the establishment. But things quickly gets out of hand and he accidentally ends up kidnapping the man's daughter with him- and starts a deadly game of truth or dare.