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.

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.

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.