| Six Knights|
- A Black knight was a stock antagonist in Arthurian legend and tended to lack any motivation except as an obstacle to be overcome by honorable knights.
- Black Knight was a nickname of the real life order Knight Hospitaller, on account of the black mantle's the order adorned themselves with.
- The Six Knights of Black will appear in the movie "The Seven Deadly Sins the Movie: Prisoners of the Sky" to release in August 2018.
- The group is considered canon as it was mentioned in the manga; however the members status is semi-canon, as they will debut in an original movie, but were created by Nakaba Suzuki himself.