Undead Unluck: Winter-hen

A one-hour special presents the "Winter Arc," in which Billy betrays the Union and takes control of the Round Table. During a blizzard caused by UMA Winter, he receives a report on the previous Autumn battle, learning that Undead and Unluck are changing. Juiz appears and tells Billy that the artifacts are weapons designed to defeat God, and that the Ark can only perform one more loop. She asks Billy to reunite and use Unluck to reach their common goal: defeating God. Billy refuses, stating they can no longer collaborate. Juiz then understands Billy's real aim is to gain control of Ark and Apocalypse. Before she can respond, Billy initiates a violent confrontation involving UMAs from both sides.