The Seven Deadly Sins: Prisoners of the Sky (2018)

A group known as the Seven Deadly Sins searches for a mysterious ingredient in a remote land to celebrate the king's anniversary. Mistakenly imprisoned in a celestial palace, Meliodas confronts a threat from the Six Knights of Black, who release demons, jeopardizing the lives of the winged residents. A great addition to the franchise, free your "otaku" side and just watch.