Alice

Alices are a rare, mutant subspecies of the succubus family that possess permanently child-like bodies. Not even aware of their own nature as lustful monsters, they unconsciously give off a pure, virginal aura that drives men to protect them, and eventually, to violate them. However, alices continue to be oblivious to their effects on men even after the fact, forgetting that anything has happened and continuing to appear - even to themselves - as innocent virgins (In this regard, the houris who serve Eros are similar in nature). Being ravaged repeatedly by her 'big brother' will begin to teach an alice's body the pleasure of sex, even if her mind remains innocent. Over time, she will unconsciously learn to respond more lewdly and engage in sexual activities with greater enthusiasm.

The creator of Wonderland, the Queen of Hearts, is herself an  alice, and a lilim by virtue of her mother, the Demon Lord. Alices in general have a special connection to Wonderland and wererabbits; those girls that enter that unique realm begin to keep their memories of sex and can even become pregnant.

Appearance
A type of Succubus that has the form of a very young girl. They're a race that arose from sudden mutation, so there are very few of them in existence. It is extremely rare to encounter one. While they are succubus type monsters, their bodies are always in a “virginal” state.

Personality
They have almost no knowledge about sex, and they aren’t even aware that men’s spirit energy is what they feed on. For that reason, even though they are a kind of succubus, they never attack humans. Their disposition is that of a very young human girl, or one even more pure, and more meek.

Guided by the instinct of the succubi, they appear and seek out men. As written above, they don't attack men. They act sweet just like children, and they just want to play together, but their bodies emit a subtle charm magic. Men who spend a lot of time around them end up assaulting them, offering up spirit energy through sexual intercourse.

What is unique about this is, just after having sex with a man, their body returns to a “virginal” state and they also lose their memory of what happened. However, their body unconsciously remembers the pleasure they received from the man, the taste of spirit energy, the man's weak point, and the sexual techniques acquired during the encounter, and they also won't forget the parts of the conversation they had during sex that weren't directly related to sex, (For example, suppose a man told an Alice “I love you" during sex, even after the deed is done and she goes back to being a virgin, she'll still remember it, and she'll insist “me and onii-chan are lovers.”) and then, each time they have sex, due to their memory, their body will rapidly grow sensitive to pleasure. Naturally, their body will use the techniques learned, and they'll be able to milk even more spirit energy out of the man.

Their feelings towards the man will rapidly build up, and as for their “virginity”, at first they'll purely feel that they want to offer their virginity to the man, but then it will rapidly change into something wildly obscene, and then, they grow into even more powerful succubi, releasing even more powerful charm magic, and possessing superior techniques for pleasing men, while at the same time eternally remaining a pure, innocent little girl.

As was the case with the original type of succubus, men who continue to copulate with them will end up turning into an “incubus”. Unlike the succubus, the Alice will not capture her man or take him off to a demon realm. However, men who become incubi are already obsessed with them. Protecting them, and giving them spirit energy, will become their most important tasks.

On a different note, for some reason they like rabbits. When they spot a Wererabbit busily hopping around, they'll chase after her. Generally, the Wererabbit will notice along the way, and end up playing with the Alice. This behavior can be seen in every Alice, but the reason for it is still not completely understood.

Trivia

 * This monster is based off of the main character in the novels Alice's Adventures in Wonderland and Through the Looking-Glass, and What Alice Found There.