Spoiler Alert Spoiler Alert: WARNING! This page happens to contain a lot of heavy spoilers that are all originated from the Overlord author, Kugane Maruyama and his collection of written works. Anime-only watchers and Manga-only readers, please take some time off to reflect it over for a bit before choosing to expose yourself on reading the information below recklessly.

Demon Fever is an ailment that exists in the New World.

Overview Edit

A cursed disease that may be unique to the undead. A highly infectious plague, that spreads by an airborne vector, and which can’t be treated by [Cure Disease].

Trivia Edit

References Edit

  1. Overlord Bonus Volume Chapter 2: Five-Year Preparations
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