Undead Unluck: Winter Arc
Undead Unluck: Winter-hen
A one-hour special that adapts the "Winter Arc".
Billy betrays the Union and seizes the Round Table. Amidst a blizzard caused by UMA Winter, he receives a report on the Autumn battle and learns Undead and Unluck are evolving. Juiz appears, revealing to him that the artifacts are weapons meant to defeat God and that the Ark can only perform one more loop. She urges Billy to join forces once more and stake everything on Unluck to achieve their shared goal: “defeat God.” However, Billy declares that they cannot work together. Juiz realizes Billy’s true intention—to obtain Ark and Apocalypse—but before she can act, Billy drags them into a brutal clash involving UMAs on both sides.
(Source: TMS Entertainment)
A one-hour special that adapts the "Winter Arc".
Billy betrays the Union and seizes the Round Table. Amidst a blizzard caused by UMA Winter, he receives a report on the Autumn battle and learns Undead and Unluck are evolving. Juiz appears, revealing to him that the artifacts are weapons meant to defeat God and that the Ark can only perform one more loop. She urges Billy to join forces once more and stake everything on Unluck to achieve their shared goal: “defeat God.” However, Billy declares that they cannot work together. Juiz realizes Billy’s true intention—to obtain Ark and Apocalypse—but before she can act, Billy drags them into a brutal clash involving UMAs on both sides.
(Source: TMS Entertainment)
A one-hour special that adapts the "Winter Arc".
Billy betrays the Union and seizes the Round Table. Amidst a blizzard caused by UMA Winter, he receives a report on the Autumn battle and learns Undead and Unluck are evolving. Juiz appears, revealing to him that the artifacts are weapons meant to defeat God and that the Ark can only perform one more loop. She urges Billy to join forces once more and stake everything on Unluck to achieve their shared goal: “defeat God.” However, Billy declares that they cannot work together. Juiz realizes Billy’s true intention—to obtain Ark and Apocalypse—but before she can act, Billy drags them into a brutal clash involving UMAs on both sides.
(Source: TMS Entertainment)
Format
Special
Episodes
1
Episode Duration
48 mins
Characters
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Staff
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News
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Reviews
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Status Distribution
Current
7%·1,113
Planning
62%·10,380
Paused
1%·156
Dropped
0%·51
Completed
30%·5,048
Score Distribution
102030405060708090100
Recommendations
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Relations
Shounen80%Foreign79%Urban Fantasy79%Travel79%Super Power73%Female Protagonist66%Male Protagonist60%Found Family60%
Frequently asked questions
How many episodes does Undead Unluck: Winter Arc have?
Undead Unluck: Winter Arc has 1 episode.
Is Undead Unluck: Winter Arc finished?
As of now, Undead Unluck: Winter Arc has finished.
When did Undead Unluck: Winter Arc start airing?
Undead Unluck: Winter Arc started airing on December 26, 2025.
What kind of show is Undead Unluck: Winter Arc?
Undead Unluck: Winter Arc is a special with episodes around 48 minutes long, originally from Japan.
When did Undead Unluck: Winter Arc premiere?
Undead Unluck: Winter Arc premiered in Fall 2025.