A girl named Michiru Kita can see the ring that appears on a person's neck when they are about to die. After seeing it on two boys in her class, she seeks to warn them, only to discover that the boys are already dead, but are still walking around hunting down dangerous zombies due to a contract with Zombie-Loan. They try to use Michiru's "Shinigami eyes" to their advantage, much to Michiru's dismay. Before Michiru goes to bed that night, she notices a faint ring appearing on her neck, which means she will die soon.