Tristan is trapped between his father's rage and his mother's grace, and the show refuses to let either side win. The animation stutters when it matters least and gleams when it doesn't, which is exactly the problem: a 3D render that looks like a PS3 cutscene carrying the weight of character work that deserves better. If you've been waiting 14 years to see what happened to Meliodas' kid, this answers it. If you haven't, the jank will kill you before Tristan's internal civil war gets a chance to.

Fourteen years after Liones defeated the Demon Clan and brought peace to the land, Prince Tristan struggles with two great powers he cannot control. From his mother Elizabeth he has the Goddess Clan's gift for healing wounds, but the Demon Clan power of his father Meliodas, once captain of the Seven Deadly Sins, often leads him to hurt others. When Elizabeth's life is put in danger, Tristan leaves the kingdom to protect his family and sets out for Edinburgh. The castle there belongs to Deathpierce, a former member of the Pleiades of the Azure Sky, a group of the kingdom's Holy Knights, and his intentions are unclear. Along the way Tristan meets a number of new friends, and events begin to draw in the Seven Deadly Sins as well. This single ONA episode is the first part of a fantasy adventure that mixes action with comedy.