Necromancy is a magic system described in Monster Girl Encyclopedia World Guide III: Sabbath Grimoire.
Guide Book Entry[edit]
The forbidden sorcery of the netherworld
Necromancy
A system of magic for controlling life and death, violating the taboos set in place by the gods. Most casters are classified as undead monsters, and there are also a small number of human casters, but since they're involved with necromancy, soon enough, they'll be corrupted by the mana and rendered undead.
Since the secret art of raise dead, which is regarded as a forbidden spell that runs contrary to divine providence and bends the underlying principles of the universe by the Order of the chief god, belongs to this system of magic, necromancers become targets of ostracism, and are reviled by many humans.
On the other hands, monsters have no values that forbid overcoming death, and the undead are also regarded as a tribe of monsters, so they have no negative feelings towards necromancy. While human necromancers lurk in hiding when conducting their activities, in monster society, necromancers have a high status; there are civilians in the military who lead undead legions, and there even exist entire nations made up of the undead. Also, many monsters seek necromancy so that they can once again live with their partners who were separated from them by death.
Every living thing has what is called a “soul” which is the core of their existence; using mana to touch souls and incite them into action is the very essence of this system of magic. The secret art of raising the dead, an exemplary spell, summons the souls of the dead back to their bodies and grants them new life; however, they don't revive as completely the same kind of lifeform that they used to be, instead transforming into undead beings such as “zombies”. Since the undead require extremely large amounts of mana to maintain themselves even after being reanimated, they must be given mana periodically by some means, or given a human male partner, or, if the necromancer is male, he needs to provide mana himself by having sex with them. Additionally, invoking spells that act on souls also requires a huge amount of mana, and if the necromancer happens to be a monster, she'll replenish her mana by ravishing her man voraciously enough to outdo a starving undead.
Furthermore, the power of necromancy can be increased dramatically by borrowing the power of “Hel”, the goddess of life and death, so it has an aspect of hieromancy as well.
Spells listed under necromancy system: