The story revolves around Kibayashi, a teacher whose hobby is speaking with the dead and whose special talent is exorcism. She seems to know everything about the other world, yet nothing about our own. (Source: AniDB)

The story begins when Ao opens a package that arrives at her doorstep. Inside the package is Gourai, a Frame Arms Girl: a small robot capable of independent movement. Gourai is a newly-developed prototype: a Frame Arms Girl equipped with an "Artificial Self," an advanced AI that gives her a personality. Ao is the only one that has activated her. Gourai begins to gather both battle data and emotions, starting a day-to-day life with Ao, who knows nothing about Frame Arms Girls. (Source: ANN)

A special included on the 7th DVD release, commonly known as "Episode 14". It features nudity and adult situations which were not present in the original series.

At Saint Hoshikawa School there is a secret group called the G-On Riders. Students with superior strength and ability are chosen to be in the group, which was formed to fight against alien attacks on the earth. However, many of the problems that the members face are ones amongst themselves, and the same is true for the invaders. And another student at the school, Ichiro, tries desperately to confess his love to Yuki, one of the Riders. (Source: ANN)