-- Profile and Art Copyright Kenkou Cross @ http://kurobine.sakura.ne.jp/Living Doll
Doll Family -- Construct Type
Habitat: human settlements, old buildings, etc.
Disposition: selfish
Diet: Human men's spirit energy
Strong sentiment that builds up in dolls that were mistreated or thrown away fuses with demonic energy causing these ones to come to life. Perhaps because of that, they have a strong obsession with being loved and treated importantly by their owners, and they possess a mysterious charm that stirs up a man's possessive instinct, causing them to want to make them their own. Their body has changed to a soft one suited for sex with men so that they can be deeply loved by their owner. If they are treated importantly and showered with affection by a man, then they will return many times more love and pleasure to the man.
They don't just assault the men they like as other monsters do. They sometimes also pretend to be an ordinary doll, and many men have taken them home after being captivated by their charm. Dolls are media that can easily carry demonic energy to begin with, and these girls who are doll monsters can also possess a large amount of demonic energy in their body. Having one of them at home will cause continual exposure to demonic energy and their power of charm. Eventually, by the time they reveal their true form and attack, the man will already be deeply in love, and he'll be helpless to resist sex with them. Once one lets himself be charmed by them, it will be too late once he realizes that they're a monster. Even if a man tries to go far away and discard them, and even if he tries to break them into pieces, at night they will return to him in their original beautiful state and get back on top of his hips sipping spirit energy.
It's not only men that are affected by their charm. Many human girls like and own them. Living dolls that become a little girl's inseparable playmate will invite the girl to play lewd, monster-like games, and seek to teach her body about pleasure. Additionally, since the girl's body will be continuously exposed to demonic energy, she'll eventually change into a succubus. As for little succubus girls who are born in this manner, they will start to enjoy pleasure following the doll's guidance as though the positions of the doll and owner have been swapped. After being tempted by the doll, the two will gang up and assault a man to “play a more pleasurable game with three people.” Furthermore, if the owner is a little monster girl, the demonic energy that's always flowing into the girl from the doll will raise the girl's abilities as a succubus considerably. The more “pure” and “innocent” the girl is, the better this demonic energy will suit her. “The more girly the girl,” the more likely she will grow into a powerful succubus possessing superior sexual techniques and a devilish charm while still retaining their original nature.
They are love starved dolls that became monsters, but sentiment can also dwell in dolls that were very much loved and treated with care, and they become monsters too. Even in that case, they will attack in the same way to share more love with their owner and get their owner to like them more.
Translated by Brolen
And yet I want to hug her 
I mean I'm going to throw in some mamono suggestions that could work