Manga Like Velveteen & Mandala

The world of Velveteen & Mandara is a dystopia. Tokyo where the youth used to waste their time search for answers, is now barren. For a pair of teens who still live along the outskirts of town, Velveteen and Mandala, Tokyo is a nightmare that can only compare to the nightmare that is slowly tring to take over the metropolis. These two teens are the last line of defence for a nation in ruins. Armed with a fully-operational tank the pair must fight off the zombie hordes while they catfight each other for food, entertainment and maybe even the affection and attention of the opposite sex. They have nothing to lose in this world except their humanity, but then again who are the zombies in this world? Are they the undead or are these two teens who must live among them even still human? (Source: Kodansha USA)