AMAIM Warrior at the Borderline (境界戦機 Kyoukai Senki?, lit. Boundary War Machine) is a Japanese mecha anime television series by Sunrise Beyond. A photonovel series titled AMAIM Warrior at the Borderline: Frost Flower has been serialized in Hobby Japan's Monthly Hobby Japan magazine since July 2021.
In the year 2061 AD, Japan has lost its sovereignty and its citizens spend their oppressing days after being divided and ruled by the four major trade factions. The country became the forefront of the world following the deployment of AMAIMs—a humanoid special mobile weapon—by each economic block.
One day, a machine-lover teenager named Amou Shiiba happens to stumble upon Gai, an autonomous thinking A.I lying abandoned in the boy's scavenger grounds. The encounter leads Amou to cast himself into the battle to reclaim Japan, piloting the MAILeS Kenbu that he built himself.
- Shiiba Amou
- Tezuka Gashin
- Shishibe Shion
The first trailer was uploaded by Bandai Spirits on March 16, 2021 .
The official English title was revealed by Sunrise's Twitter account on July 23, 2021 .
Funimation announced that they would simulcast the series outside of Japan.