The "Seven Deadly Sins", a group of evil knights who conspired to overthrow the kingdom of Britannia, were said to have been eradicated by the Holy Knights, although some claim that they still live.
Ten years later, the Holy Knights have staged a Coup d'état and assassinated the king, becoming the new, tyrannical rulers of the kingdom.
Elizabeth, the king's daughter, sets out on a journey to find the "Seven Deadly Sins", and to enlist their help in taking back the kingdom.
Note: Nominated for the 7th annual Manga Taishou Award. Won the Kodansha Manga Award for Shounen in 2015 (tied with ).