M3: Sono Kuroki Hagane
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Anime DetailsFINISHED

Format
TV series
Episodes
24
Episode length
24 min
Total watch time
9 h 36 min
Status
Finished
Aired
April 22, 2014 – September 30, 2014
Season
Spring 2014
Source
Original story
Studio
Satelight
Music
Hajime Sakita
Age rating
R — 17+ (violence & profanity)
Country
Japan
AniList score
60/100
Estimated watch time
9h 36m
⚡ 5 days at 5 eps/day

Tags & Tropes

Cultivation79%CGI60%Gore40%Magic20%
TVFINISHED2014 SPRING6.0 / 10 AniList score

M3: Sono Kuroki Hagane

M3 ~ソノ黒キ鋼~
overview details

Synopsis

There is distorted, deep blackness everywhere. That place, in which blackness swallowed everything and took away everything, has become known as the Avidya Zone. Strange beings assume the very form of the despair and chaos of humanity. They are known by this name: Imashime. An expedition surveys the Avidya Zone which consumes human spirits. So, in the intricate intersection between the present in impending crisis and the destiny of the past … can eight boys and girls, assembled to confront the Imashime, find the bright future that lies before the Avidya Zone? (Source: Anime News Network)

Should you watch M3: Sono Kuroki Hagane?

M3: Sono Kuroki Hagane has been met with mixed reactions, with an average AniList score of 60/100 — 25% of 3,575 ratings are 8/10 or higher.

Of the 7.3K AniList users who started it, 23.2% dropped it, so it is frequently dropped; 4.1K have finished it.

At about 9 h 36 min in total, plan on one to two weeks at a couple of episodes a day.

Best for viewers who enjoy Action, Mecha, Psychological — especially cultivation, cgi.

Where to Watch Officially

A streaming link is not listed for this title yet.

Episodes

24 episodes are listed.

Main cast & voice actors

Creators & key staff

Series composition
Mari Okada
Character design
Hideki Inoue

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M3: Sono Kuroki Hagane FAQ

How many episodes does M3: Sono Kuroki Hagane have?

M3: Sono Kuroki Hagane has 24 episodes of about 24 minutes each, roughly 9 h 36 min in total.

How long does it take to watch M3: Sono Kuroki Hagane?

About 9 h 36 min back to back. At two episodes a day it takes 12 days; at one hour a day, about 10 days.

Is M3: Sono Kuroki Hagane finished?

Yes. M3: Sono Kuroki Hagane has finished airing — the final episode aired September 30, 2014.

Is there a season 2 of M3: Sono Kuroki Hagane?

No sequel is listed for M3: Sono Kuroki Hagane as of October 2026.

Is M3: Sono Kuroki Hagane based on a manga?

No. M3: Sono Kuroki Hagane is an original anime story, not adapted from a manga or novel.

Who animated M3: Sono Kuroki Hagane?

M3: Sono Kuroki Hagane was animated by Satelight and C2C and directed by Junichi Satou.