"Seven Deadly Sins" stars the Seven Deadly Sins. The story is set in the Kingdom of Lyonness on the fictional continent of Britalia, where the paladins of the kingdom committed many atrocities in preparation for the holy war, leaving the entire country in dire straits. At this time, the country's third princess Elizabeth placed her hopes of saving the country on the Knights of the Seven Deadly Sins, who were wanted for suspected subversion of the kingdom. In the journey to find them, an adventure that will change the face of the world officially begins.