Hidomi Hibajiri is a disillusioned young girl who never takes off her headphones. Her whole life consists of going to school, helping out at her mother's cafe, and listening to music. And with nothing else to break the crippling monotony, she keeps her headphones on at all times. That is, until she is run over by a mysterious guitar-wielding woman. That same night, a robot barges into Hidomi’s room along with a boy from her class, Ko Ide, and the kids are chased around town together. They're saved by the guitar-wielding woman from before, but now Hidomi's got a horn growing from her forehead? Who knows where these robots are coming from, what kind of vespa woman this weird guitar woman is warning her about, or what this thing on her forehead is, but it doesn't look like Hidomi is going to be able to ignore all this with headphones!

A compilation movie of the TV series containing a newly added footage.

Ao Gennai is a completely average first-year high school student—that is, until a mysterious package is delivered to her home one day. Inside she finds Gourai, a tiny humanoid robot capable of movement and combat known as a Frame Arms Girl. Gourai is the first of her kind, possessing an extremely advanced AI that allows her to form a personality, learn, and grow, much like the human mind. Following Gourai's activation, Ao is thrust headfirst into the world of Frame Arms Girls as more and more of the intelligent robots are delivered straight to her front door. With a rather hefty cash incentive pushing her forward, Ao is committed to collecting as much data about the Frame Arms Girls and their combat as possible, all while they learn what it means to be human.

The story takes place on an island, where a Fractale System is beginning to collapse. One day, Clain finds an injured girl called Phryne under a cliff. She disappears leaving a pendant. Clain sets out for a journey with the girl-shaped avatar Nessa to look for Phryne and discovers the secret of the Fractale System.