Overview: Two years after the world as we know it has ended, Shizuru leads an uneventful life in her hometown of Agano. But one day, she finds a clue that will lead her on a journey into the unknown to find her missing friend.
Overview: Shizuru and the others depart on their journey to Ikebukuro, but find that they are woefully lacking in supplies. As they ride along the Koma River, they spot a mysterious, long-necked shadow.
Overview: The gang finds themselves welcomed by the friendly townsfolk of Higashi-Agano. Akira, however, can't shake the feeling that all is not as it seems with their generous hosts.
Overview: As the train continues on its journey to Ikebukuro, each new stop begins to take weirder, wilder turns. Meanwhile, Akira appears to be hiding something from the others.
Overview: Shizuru and Reimi find themselves prisoners near Inariyama Park. They must escape their tiny captors, and find a doctor to cure Akira's affliction before it's too late.
Overview: Pochi-san appears to be feeling sick, much to Akira's dismay. In the ensuing argument, Nadeshiko confronts Shizuru to find out the truth about why Yoka has gone missing.
Overview: Shizuru is taken captive, and Nadeko and the others must infiltrate a horde of zombies to rescue her. However, they'll first need to hoodwink the queen of the zombies.
Overview: Reimi is excited to head into Oizumi-gakuen, which has transformed into her favorite anime. However, they're met with a much bleaker retelling where the bad guys reign supreme.
Overview: Yoka wakes up to find herself in Ikebukuro, now transformed beyond recognition. Elsewhere, Shizuru and the others, still on their journey, run into a familiar face.
Overview: Shizuru spots a mysterious silhouette on the train tracks near Higashi-Nagasaki, belonging to a mysterious creature who happens to remind her of someone.
Overview: The train finally reaches its last stop, Ikebukuro. Now it's up to Shizuru and the others to find Yoka and put an end to the 7G menace.
Overview: Poison Pontaro sets off on an armored train with Yoka in tow. The fate of the world now rides on Shizuru and the gang, in hot pursuit aboard the Apogee.