Mamoru Kagemori
main character
TV
6.2
My TrackerPLANNING
Episode: 0 / 12
My Score:
Anime DetailsFINISHED
- Format
- TV series
- Episodes
- 12
- Episode length
- 24 min
- Total watch time
- 4 h 48 min
- Status
- Finished
- Aired
- January 8, 2006 – March 26, 2006
- Season
- Winter 2006
- Source
- Light novel
- Director
- Yoshitaka Fujimoto
- Original creator
- Tarou Achi
- Music
- Takeshi Watanabe
- Age rating
- PG — Teens 13 or older
- Country
- Japan
- AniList score
- 62/100
Estimated watch time
4h 48m
⚡ 3 days at 5 eps/day
Tags & Tropes
Ninja60%Female Harem60%
TVFINISHED2006 WINTER6.2 / 10 AniList score
Guardian Ninja Mamoru
陰からマモル！• Kage kara Mamoru!
Synopsis
Kagemori Mamoru is a dowdy boy whose hair is disheveled and who wears thick glasses, but he is actually the son of a ninja family. They have protected their neighbors, the Konnyaku family, secretly for 400 years. Mamoru has personally protected their daughter, Konnyaku Yuuna, since they were in kindergarten. When Yuuna is in trouble, Mamoru puts on ninja suit and turns into a competent ninja to help her.
Should you watch Guardian Ninja Mamoru?
Guardian Ninja Mamoru has been met with mixed reactions, with an average AniList score of 62/100 — 24% of 1,622 ratings are 8/10 or higher.
It ranks #95 highest-rated anime of 2006, and #87 most popular anime of 2006, and #11 highest-rated anime of Winter 2006 on AniList.
Of the 2.9K AniList users who started it, 6.4% dropped it, so it is dropped at a typical rate; 2.4K have finished it.
At about 4 h 48 min in total, it is a short commitment — a weekend binge.
Best for viewers who enjoy Comedy, Romance — especially ninja, female harem.
Where to Watch Officially
A streaming link is not listed for this title yet.
Episodes
12 episodes are listed.
Main cast & voice actors
Creators & key staff
- Original creator
- Tarou Achi
- Director
- Yoshitaka Fujimoto
- Music
- Takeshi Watanabe
Related entries
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Guardian Ninja Mamoru FAQ
How many episodes does Guardian Ninja Mamoru have?
Guardian Ninja Mamoru has 12 episodes of about 24 minutes each, roughly 4 h 48 min in total.
How long does it take to watch Guardian Ninja Mamoru?
About 4 h 48 min back to back. At two episodes a day it takes 6 days; at one hour a day, about 5 days.
Is Guardian Ninja Mamoru finished?
Yes. Guardian Ninja Mamoru has finished airing — the final episode aired March 26, 2006.
Is there a season 2 of Guardian Ninja Mamoru?
No sequel is listed for Guardian Ninja Mamoru as of October 2026. You can continue the story in the original light novel.
Is Guardian Ninja Mamoru based on a light novel?
Yes. Guardian Ninja Mamoru adapts the light novel by Tarou Achi.