overview : Within the shadows of Japan, a covert battle wages on. Around 200,000 ninjas still exist carrying out deadly missions as a secret organization, National Intelligence of NINJA, or NIN. But a challenger arises: UNDER NINJA. Known as UN, these ninjas oppose NIN at every turn. One such UN is Kuro, a high school loner sent to the front lines. What will be his fate and which faction will prevail?

First Air Date : Oct 06, 2023

Last Air Date : Dec 22, 2023

Runtime : 24m

Episodes : 12

Seasons : 1

Genre : Animation,Drama,Comedy,Action & Adventure,

Companies : Pony Canyon, Tezuka Productions, Kodansha, TBS, Crunchyroll, BS11, MAGNET

Countries : JP

Keywords : slice of life, ninja, based on manga, seinen, anime