Undead

Undead (アンデッド) are creatures that have come back to the land of the living after dying and are found both in YGGDRASIL and the New World.

Background
Undead are considered monsters that possess an undying hatred for all living creatures. Basic traits found amongst all undead are: no longer needing to eat, drink, or sleep, inability to feel fatigue, dark vision, immunity to poison, mind control, illness, paralysis, energy drain, and necromancy, recovery from negative energy, and weakness to fire, light, holy, and positive energy. The undead are considered the enemy of all living beings.

Skeleton

 * Bone Vulture
 * Elder Lich
 * Nazarick Elder Guarder
 * Nazarick Master Guarder
 * Nazarick Old Guarder
 * Overlord
 * Skeletal Dragon
 * Skeleton Archer
 * Skeleton Centipede
 * Skeleton Mage
 * Skeleton Rider
 * Skeleton Warrior
 * Soul Eater

Zombie

 * Blood Meat Hulk
 * Corpse Collector
 * Death Knight
 * Dullahan
 * Eyeball Corpses
 * Freezing Zombie
 * Frost Bone
 * Ghast
 * Ghoul
 * Jack the Ripper
 * Necrosome Giant
 * Plague Bomber
 * Squire Zombie
 * Undead Beast
 * Viscera Egg

Death Spirit

 * Astral Reaper
 * Carrion Baby
 * Grim Reaper Thanatos
 * Ghost
 * Pale Rider
 * Wight
 * Wraith

Vampire

 * Elder Vampire Bat
 * Lesser Vampire
 * True Vampire
 * Vampire Bride
 * Vampire Princess
 * Vampire Wolf

Unknown Undead

 * Corrupt Dead
 * Crypt Lord
 * Death Cavalier
 * Death Emperor
 * Death Empress
 * Eternal Death
 * Swell Skin

Trivia

 * There are numerous undead in the Katze Plains.
 * When the undead gather in one place, stronger undead are created.
 * The Baharuth Empire is conducting experiments to make undead laborers under their control.
 * Those who died a violent death and the dead who were not properly revered have the highest chance of becoming undead.
 * It is uncertain what causes the spontaneous genesis of the undead, the Baharuth Empire is currently investigating the reason.
 * To prevent the dead from becoming undead, the people of the New World have taken to making proper burials for the dead as soon as possible when death occurs.