NeoMyotismon is an Undead Digimon whose name and design are derived from "New (νεο Neo?) Myotismon". It is the general of the Moonlight Army of the "Big Death-Stars". Its goal is to erase hostile forces without leaving a trace, so it has its army of Undead Digimon lurk everywhere and erase the Digimon that move against it, one by one. It forgot its emotions as a consequence of always lurking in the dark, and even slaughter is becoming a part of its life that it neither likes nor dislikes. However, it feels fulfilled only when it watches the termination of a dying Digimon under the moon. NeoMyotismon can summon its familiar spirits, "Nightmare Leeches", which are brought forth in an inexhaustible supply, and naturally prefer the life energy of Digimon.