After being lured into a trap by the promise of rare character goods, aimless otaku Nanashi finds himself transformed into one of the walking undead. However, he is spared the worst of his fate by the bloody kiss of a mysterious young woman named Shizuku. Together with the rest of his companions in an organization unofficially dubbed the “Akiba Freedom Fighters,” Nanashi must uncover the truth behind a plague of violent, antisocial energy vampires and save the Japanese electronics mecca of Akihabara before it is overrun. And of course, the best way to fight vampires is to strip them down to their skivvies so they melt in the noonday sun….