Urushiba Rinka suddenly finds herself in the apartment below her home, completely naked! Rinka meets a mysterious boy who seems to know her as she tries to recall what happened to her. All the while, new threats begin to appear...

The great battle is reaching its climax as everyone hurries to save the parliament from imminent doom. However, the Professor's true target is elsewhere and may change Tokyo's future completely. Rinka must fight to protect everything dear to her!