When Akane Akikawa transfers to a school her aristocratic family decides to send her to, she ends up in the same class as a mysterious student, Ruki Mukami. Though she is a human, Akane has always had an acute ability to sense when someone isn't human or is being haunted by a spirit. So what happens when she starts to get this strange sense from Ruki? She avoids him, of course. It's only when she avoids him that Karl Heinz decides that she is the new Eve because of her abilities. Now that Ruki Mukami has kidnapped her, what will Akane do?