When Michiru open her glasses, she can see death sign in someone’s neck. It looks like a black ring. The thicker the color means that the person is already dead, and even don’t deserve to be in the world anymore. We call them zombies.
Michiru sees that ring on Tachibana Sit and Akatsuki Chika, her classmates. They were reported as the only survive from big accident 6 months ago. They were supposed to be dead. But, they make a deal with a zombie loan to get them alive. It costs them a lot. Now, they have to kill other zombies to pay back the loan. The problem is, they can’t differentiate those evils. This is where they need Michiru’s help. Together, they will vanish all evil.
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