10/06/2023 - 12/22/2023 Finished
Under Ninja (アンダーニンジャ)
Once believed to be extinct, ninjas have reappeared in contemporary Japan following the Pacific War. With a headcount rumored to be two hundred thousand, these deadly assassins are now tasked with covert operations, infiltrating a significant portion of the nation's public and private institutions in the process. Among these ninjas is Kurou Kumogakure, who often spends his days in a run-down apartment with no motivation to do much of anything. Some might consider him a useless vagrant who does nothing but steal beer from his neighbor. Nevertheless, the 17-year-old loser might actually be more dangerous than his demeanor suggests. Kurou's hidden potential is put to the test when he is given a new mission to infiltrate a local high school, but there is more to this assignment than he could ever predict.
12
Total episodes
12
Canon episodes
0
Filler episodes
0%
% Filler
Canon episodes · 12 Filler episodes · 0
Every season
Seasons and sequels
Single Season
Currently, Under Ninja has no sequels, prequels, or registered spin-offs. This is the complete story available at the moment.
What to watch, what to skip
Watch order: filler vs canon
You're in luck! Under Ninja doesn't have a single filler episode: all 12 episodes are canon. It's a faithful adaptation of the original manga, so you can enjoy it from first to last without skipping anything or checking any list of expendable episodes.
In short, the watch order for Under Ninja is as simple as it gets: start at episode 1 and keep going to episode 12 without detours. If you came looking for which Under Ninja episodes are filler so you could skip them, the answer is that there aren't any.
Episode by episode
Complete guide by season
12 Episodes
| # | Episodes | Aired | Type |
|---|---|---|---|
| 1 | Throw a Rock, Hit a Ninja— | — | Canon |
| 2 | I Want to Be a Ninja— | — | Canon |
| 3 | Boobs: So Close, Yet So Far— | — | Canon |
| 4 | Do You Know What the Ninja Code Says?— | — | Canon |
| 5 | Kumogakure Is Within the Top 10 Common Family Names in Japan (Lying)— | — | Canon |
| 6 | The Lid on This Hellish Cauldron Has Come Off— | — | Canon |
| 7 | Meow Meow, Meow Meow, Meow Meow Meow Meow Meow?— | — | Canon |
| 8 | Every Last Ninja on the Surface Will Be Annihilated— | — | Canon |
| 9 | I'm Gonna Go Down in Shinobi History— | — | Canon |
| 10 | DAYS GONE BY AND DAYS TO COME— | — | Canon |
| 11 | Kuro Finally Took Up a Sword— | — | Canon |
| 12 | Business as Usual, Wrapped Up Tidy— | — | Canon |
Verified legal platforms
Where to watch Under Ninja
All the platforms where you can watch Under Ninja legally, with direct links to each service.
Liked it? Keep going
Anime similar to Under Ninja
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We've selected these series because they share characteristics with Under Ninja: similar themes, comparable animation style and the same target audience. Each guide includes the complete list of seasons, filler episodes you can skip and the best platforms to watch each anime in your region.
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Looking for more anime like Under Ninja? Explore our complete anime guides catalog or filter by the Accion genre to find more similar series.
Common questions
Frequently asked questions
How many seasons does Under Ninja have?
Under Ninja has a total of 1 season. The series is completed. Each season is divided into multiple episodes with stories that advance the main plot of the anime.
How many episodes does Under Ninja have?
In total, Under Ninja has 12 episodes in its only season. You can consult the complete episodes table to see the breakdown by season.
What is the best order to watch Under Ninja?
It is recommended to watch Under Ninja in chronological broadcast order. This means starting from season 1 and continuing sequentially to the last season. Check our watch order guide which includes information about filler vs canon episodes for an optimal experience.
Where can I watch Under Ninja online?
Under Ninja is available on the following streaming platforms: Crunchyroll. Check the platforms section at the top of this page to access where you can watch the anime. Please note that availability may vary depending on your geographic region.
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Is Under Ninja a complete anime?
Yes, Under Ninja is a completed anime. All seasons have already aired and you can enjoy the series in its entirety without waiting for new episodes.
How much filler does Under Ninja have?
No, Under Ninja does not have filler episodes. All its episodes are canon and faithfully follow the original manga story, so you can watch all episodes without worrying about skipping anything.
Where can I see Under Ninja's score and reviews on MyAnimeList?
You can check the score, reviews, characters and statistics for Under Ninja directly on MyAnimeList, the world's largest anime database. There you'll find the community rating, global ranking and opinions from other fans.