Kyoukai Senki

AMAIM Warrior at the Borderline

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Alternative Titles

Japanese: 境界戦機
English: AMAIM Warrior at the Borderline
More titles


Type: TV
Episodes: 13
Status: Finished Airing
Aired: Oct 5, 2021 to Dec 28, 2021
Premiered: Fall 2021
Broadcast: Tuesdays at 01:30 (JST)
Producers: Bandai Spirits
Licensors: Funimation
Studios: Sunrise Beyond
Source: Original
Genres: ActionAction, Sci-FiSci-Fi
Theme: MechaMecha
Duration: 24 min. per ep.
Rating: PG-13 - Teens 13 or older


Score: 6.321 (scored by 1087310,873 users)
1 indicates a weighted score.
Ranked: #77952
2 based on the top anime page. Please note that 'Not yet aired' and 'R18+' titles are excluded.
Popularity: #3921
Members: 32,941
Favorites: 132

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Ranked #7795Popularity #3921Members 32,941
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Episodes: /13


Futuristic post-war Japan is divided into four military regions, each led by conflicting nations trying to gain complete control over the country. While the Boundary War—fought with the help of humanoid mecha weapons called AMAIM—has long been over, the rivalry between these factions is still ongoing, and, as a result, the Japanese are heavily oppressed.

Amou Shiiba, a 16-year-old orphan boy who is secretly rebuilding an abandoned AMAIM named Kenbu, stumbles upon Gai, an autonomous AI in need of battery power. By choosing to help one another, Amou and Gai find themselves at the center of a disaster, and Amou is labeled a terrorist and cast out of society. Even so, Amou refuses to remain idle in the face of injustice, and he embarks on a long journey rife with struggle and companionship. His aim transitions from leading a peaceful life to liberating the Japanese people.

[Written by MAL Rewrite]

Characters & Voice Actors


Habara, Nobuyoshi
Abe, Masashi
Episode Director, Storyboard


Opening Theme

Apple Music
Amazon Music
Youtube Music
"enemy" by Blank Paper

Ending Theme

"You're my perfect mirror" by Yuuna Fukinbara (富金原佑菜)

Episode Videos


Dec 12, 2023
Kyoukai Senki, or AMAIM Warrior at the Borderline is another one of those Anime I have stumbled upon just by listening to one of my friends rant about something in the Mecha modeling world ironically. While I wouldn't consider this one of those hidden gems as I did for the likes of World Trigger, I am happy I came across it and I look forward to watching the second season.

As with any Mecha themed show it has what you would expect. BIG robots piloted by humans with the action that is generally coupled with it. As a casual Mecha watcher I can say I enjoyed ...
Jan 9, 2024
Mixed Feelings
The mecha genre has undergone significant evolution, raising questions about its current relevance. While some detractors dismiss AMAIM Warrior at the Borderline as a cheap Gundam knockoff, a closer examination of modern mecha titles, including Gundam itself, reveals how the genre has transformed to cater to the preferences of a new generation. Traditional tropes and elements have been reimagined and reshaped, aligning with the changing tastes and demands of contemporary anime audiences. This observation is not solely based on personal claims; even Takuya Okamoto, the producer of Witch from Mercury at studio Sunrise, acknowledges that classic Gundam titles no longer resonate with modern viewers. ...
Oct 22, 2022
The animation is fine, the voice acting is fine. It looks and feels very Gundam-ish.

Where is all falls apart is the plot and the characters.

The characters are annoying and one-dimensional. Honestly, the best characters are the AIs, but the writer decided to make them glorified virtual secretaries for the teenage pilots, despite it being incredibly clear that the AIs are far more capable than humans.

The main character is a whiny, crying idiot for most of the show. He's in the middle of a war, yet he doesn't actually want to fight or hurt anyone and cries constantly any time they take even ...

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