R-17+

Under Ninja

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Manga
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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.
Hikari is the best site to watch Under Ninja SUB online, or you can even watch Under Ninja DUB in HD quality.
Japanese: アンダーニンジャ
English:
Country: Japanese
Aired: 2023-10-06 to 2023-12-22
Premiered: Fall
Duration: 24 min per ep
Status: Finished
MAL Score: 6.9
Genres: Action Seinen
Studio: Tezuka Productions
Producers: Pony Canyon TBS Kodansha DAX Production BS11 Crunchyroll MAGNET NetEase
Resources: Official Site @UNDERNINJAanime AniDB ANN Wikipedia Wikipedia Syoboi

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