While everyone is looking for the missing Yukina she decides to launch her own investigation into her fathers notebook, starting at the remains of the ruins of Kennosuke's clan. There she is attacked and rescued by a mysterious demon. The demons in orbit demand the artifact returned to them, however the artifact is the only "ace" the earths has against them. As a direct response another Geoframe attack is launched on Japan. With Yukina missing and Kennosuke in pursuit to find her there is no one to pilot the artifact..... (thetvdb.com)