Editing Monster Girl Encyclopedia World Guide I: Fallen Maidens (section)

===The concept of monsters===
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Monster is a general term for various races that are reigned over by the Mamono Lord.

Formerly, in the age when the old Mamono Lord ruled the monsters that was called “the age of the former Mamono Lords”, monsters were grotesque creatures that devoured humans and spread death. However, since an immensely powerful succubus took over and became the new Mamono Lord, we've entered an age called “the new Mamono Lord's age”, and the monsters' forms have changed dramatically. All of them now have beautiful, alluring figures resembling human women. They attack humans, just as they did when they were grotesque creatures, however, the meaning behind it is completely different.

The monsters of the present have been heavily influenced by the nature of the Mamono Lord who is a succubus and their main food is the same as that of the Mamono Lord, living energy called “mana” that is contained within the semen, saliva, etc. of human men. Also, just as it appears, all of the monsters are female. Presently, a male monster has never been confirmed. For that reason, when they reproduce, they must have sex with a human man. And more than anything, in general, all “monsters” are lustful, and instinctual. They are devoted to pleasure and desire, especially the desire to have sex with men. Due to these goals, they coercively have sex with human men, and attack them in order to rape them.
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