
Overview:
Long ago, alien lifeforms came to Earth, fusing with people on the planet. Due to their appearance, they were dubbed "Mecha-ude," as when fused, they bore a striking resemblance to mechanized limbs.
Through an involuntary partnership, average middle schooler Hikaru Amatsuga works alongside the Mecha-ude Arma, who is an extremely rare and special existence. To protect Arma, the resistance group ARMS assigns the dual Mecha-ude user Aki Murasame to follow him wherever he goes. However, she is also looking for a mysterious Snake-Type Mecha-ude wielder, who has put many of her comrades in a critical state.
Behind the scenes, an organization known as the Kagami Group is searching for the mythical "Trigger Arm," a Mecha-ude said to grant unlimited power. When Aki's life is threatened by this group, Hikaru must team up with Arma to find the courage to fight back and, along the way, learn that his life will never be ordinary again.
Characters and Voice Actors

Alma
MainSugita, Tomokazu
Japanese

Amatsuga, Hikaru
MainToyonaga, Toshiyuki
Japanese

Murasame, Aki
MainShimamura, Yuu
Japanese

Aljis
SupportingTouchi, Hiroki
Japanese

Amaryllis
SupportingHikasa, Youko
Japanese

Dex
SupportingIshikawa, Kaito
Japanese

Fist
SupportingNakamura, Yuuichi
Japanese

Fubuki
SupportingYuuki, Aoi
Japanese

Iizuka
SupportingHase, Norihito
Japanese

Kagami, Jun
SupportingPark, Romi
Japanese

Kazuwa
SupportingTamaru, Atsushi
Japanese

Meru
SupportingUeda, Reina
Japanese

Naohito
SupportingYasumoto, Hiroki
Japanese

Naokata
SupportingUzawa, Shoutarou
Japanese

Oner
SupportingFukushima, Jun
Japanese

Quen
SupportingUenishi, Teppei
Japanese

Sakuga
SupportingTsuji, Shinpachi
Japanese

Sinis
SupportingIshikawa, Kaito
Japanese

Tagawa
SupportingSawada, Takurou
Japanese

Toudou
SupportingAmatsuki
Japanese

Tsukihito
Supporting
Twos
SupportingIshigami, Shizuka
Japanese

Yakumo
SupportingYamaguchi, Kappei
Japanese
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