Mechanical Arms

In a world where alien beings known as Mecha-ude have merged with humans, their mechanical limbs evoke both awe and fear. This unique bond is exemplified by Hikaru Amatsuga, an ordinary middle school student who unexpectedly finds himself partnered with Arma, a rare Mecha-ude with exceptional abilities.

As Hikaru navigates his new reality, he becomes the target of a powerful resistance group called ARMS, which sends the skilled dual Mecha-ude user Aki Murasame to protect him. Aki, however, has her own mission: to track down a dangerous Snake-Type Mecha-ude wielder responsible for grievous injuries among her allies. Meanwhile, a shadowy organization known as the Kagami Group is on the hunt for the legendary "Trigger Arm," a Mecha-ude rumored to offer unparalleled strength. Faced with escalating threats, Hikaru must summon his newfound courage and join forces with Arma, realizing that his life is about to change in ways he never imagined.