The novel series tells the story of the student Ayumu, who was murdered by a serial killer, and the necromancer Eucliwood as a zombie was revived. Since then, he aims to make his killer harmless, but must at the same time with the side effects of being a zombie mess and the girls who are spreading in his apartment.
The opening theme is "Leave-It-To-Me Tonight" (Ma-Ka-Se-Te Tonight) by Iori Nomizu while the ending theme is "Notice Me, Mr. Zombie, I am your Classmate" (Kizuite Zonbi-sama, Watashi wa Kurasumeito Desu?) by c with Manzo.
The prequel to the events of the novel series is only explained in flashbacks. She begins an unspecified time in the past, as Ayumu Aikawa is still a regular student and a serial killer is on the loose in the city.