Episode 1

S1 E1: 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 knew it, Alma ended up connecting (derizing) to his hoodie. Hikaru is unable to abandon Alma, so the two end up working together. But then, a mysterious Mecha-Ude user confronts them.