If I want to describe M3, I will say, it is “everything is dark, mess up and fully depressed” kind of anime, but as you follow through each episode, you will gain some insight about each character. M3 is kind of an anime which focus more about the characters personality, their past event, their personality, their perspective, and their characteristic, which is not many anime didn’t go to this route. One might say, this anime is dark and depressing which leads for those who watch it will ask themselves to continues watching the series or not. And this is true by the way since I havedone go through that experience. What can I say, the story has a slow progress and complicated at the start but somehow in the end, the pieces of events eventually connect together.

M3 is an anime which show you each main character’s story as they interact to each other in depressing way and it not just one but many occasion. While they fighting for humanity, you can see conflict between good and bad is not the main point of this series. As you follow the series, you might want to argue about specific main character who got many spotlight such as Akashi, but the other character also do have their impact in main story which is good but in depressing way(again). The character development also has a slow start at first, but you can see the struggle of each main character to support each other even you will have sympathy for antagonist character.
The animation of this is somehow average and I don’t expect high and fluid animation since the focus of the show is not about the fighting scene and character details. But, the series do have a good CGI for the mecha suit especially when they fight the Admonitions. Other than that, it pretty much okay.

The OST has many depressing song in it which is suit with the anime. The arrangement of the soundtrack is also average and not much active since the theme is dark (again). Once again, I didn’t expect Nano to contribute the theme song for the series and that is one of the reason I keep watching it.

Verdict:

M3: Sono Kuroki Tetsu is a good anime with nice dark theme and good character development. Maybe the series is not for anyone since I heard many negative reviews from audience, but I do believe the studio did a good job showing us how they handle the dark theme successfully. If you are a person who can be patient with this genre and story, then this show might be one of your watch list of anime.