The Seven Deadly Sins is a Japanese fantasy manga series written and illustrated by Nakaba Suzuki.The Seven Deadly Sins are a band of knights in the land of Britannia . Liones' third princess, Elizabeth Liones, finds the Seven Deadly Sins' leader, Meliodas, before they search out his comrades so they can clear their names and liberate Liones from the Holy Knights, who were manipulated by a demon named Fraudrin into unsealing the Demon Race from their prison.