
S01E01 Mecha-Ude User
Hikaru Amatsuga is a middle school student who lives in Kita-Kagami City and one day, he hears cries for help and finds a mechanical lifeform in the shape of an arm named Alma. Before he...
Hikaru and Alma are taken to ARMS HQ. There, Hikaru is told that he is not suited to be a Mecha-Ude user, and Alma falls under ARMS' protection. Meanwhile, multiple incidents where Mecha-Udes are forcibly ripped away from their users occur.
Hikaru’s ordinary middle school life takes a thrilling turn when he encounters Alma, an alien entity resembling a mechanized limb called Mecha-Ude. Alma, a member of a rare species, is fleeing from a sinister group hunting their kind down in search of one possessing unparalleled power. Tasked by the resistance group ARMS, this unlikely duo will embark on a perilous journey to save the Mecha-Ude.