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

===CASE 02: Essence Corrosion (p84)===
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:''["Haa... Haa...my body's getting hot... ♥ hey...can you help me... ♥"]''
<p style="text-align: right;">Female adventurer lost in the [[Mamono Realm]]/[[Human]]</p>

Mamono mana (or mana), floating free in the atmosphere, will slowly flow into a human woman's body, accumulate, and eventually, once enough has built up, change her into a monster. Thanks to the phenomenon of the Mamono Realm constantly releasing, and being steeped in monstrous mamono mana, any women who visit a Mamono Realm for a period of time will become a [[Succubus]].   

Unlike being assaulted by a monster, exposure to energy is a slow, gradual process. A woman who is exposed to energy will find herself becoming more and more excited as the energy trickles into her, eventually, her thoughts fading as she enters an oestrus. Her body heating up little by little and becoming feverish, she'll also take a special interest in any companions with her as her body becomes more sensitive to pleasure.

Once the woman has entered oestrus, her body feverish with desire, it is already too late for her, in this state, she is already on the verge of becoming a monster. Spotting a man, she will attack him, and when he releases his essence, this will provide the final burst needed to completely change her into a monster.

During this phase, the affected women, their body feverish and minds foggy, find it impossible to resist these feelings and it is inevitable they will change into a monster when they come across a man. Having just transformed, their bodies will seethe with fever and lust, thanks to this they will continue to force themselves on the man that just helped them transform.

For those traveling in the Mamono Realm, particularly heroes sent to slay the Mamono Lord, this constant corruption caused by the monstrous energy flooding the atmosphere is a big problem. Even though you can avoid or fight off monsters, there is nothing that can be done to prevent this corruption from occurring.

So far, only two female heroes, a two member party, managed to reach the Mamono Lord herself, they were, however, already on the verge of becoming succubi and were given their last push by the Mamono Lord's own hand. So far no hero or heroine has managed for the face-off against the Mamono Lord without becoming a [[Succubus]] or [[Incubus]] and joining her army's ranks.

In addition, the type of Mamono Essence that a human woman is exposed to can change the species of monster she'll become, different areas producing different types of mana. For example, a woman who drowns at sea is invaded by Poseidon's energy changing the woman into a [[Nereid]].
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