Zombie-Loan

When a person is marked to die, a faint gray ring appears around their neck, invisible to most. Over time it darkens, until at last it turns black and they die. Kita Michiru has an unusual gift: "Shinigami eyes," which let her see these rings. When she notices that two boys in her class, Akatsuki Chika and Tachibana Shito, not only have rings but that they are jet black, they reveal to her that they were supposed to die in a tragic accident six months ago. With the help of the Zombie Loan loan office, they were given a second chance at life, provided they can pay off their debt by doing the work of Shinigami and killing malicious zombies. They ask Michiru to assist them, and she finds her everyday life changing dramatically.