The Contract Between a Specter and a Servant Novel Volume 1 was written by Michiru Fushino.

The worst—and last—day of his life! Masamichi Adachi left his hometown in the country to study agriculture at university. He prepared diligently for the exam, got his own apartment, and landed a part-time job to pay rent and support himself. He's doing everything right, so why is it all going horribly wrong?! He's failed the entrance exam twice, lost his job, and to top it all off, a hit-and-run leaves him a lonely, bloody mess on a dark road. Just as he accepts his fate and goes toward the light, an unlikely savior approaches, drawn by the smell of his blood. A contract with this stranger could give him a second chance at life, but will he agree to terms that include being eaten alive?