Zombie-Loan - S01

Michiru Kita knows when people will die-she can see a "ring of death" around their necks, and the darker it is, the sooner their time will come. When she notices two classmates, Chika Akatsuki and Shito Tachibana, with pitch-black rings, she tries to warn them-only to discover they're already dead. Turns out, the boys are kept alive by a deal with Zombie-Loan, a shadowy agency that lets them pay off their debt by hunting zombies. But when they learn Michiru has the "Shinigami Eyes," they pull her into their dangerous, undead world.