This is Demonica – The (Devil) Monster Girl. 

As part of the demonic race, the devils feed on human’s emotions, specially wicked thoughts, they thrive on corrupting humans.  They love seeing humans become unable to resist wicked temptations and succumb to evil, and they will use whatever means possible to lure humans onto the path of corruption.
 

Their appearance exudes decadence and depravity, and men fascinated by this are led to corruption. Once a man has walked along the path to corruption, the devil will propose a "pact" that binds his soul to eternal submission. The pact is bound with sorcery and can never be broken unless a paladin cast a purification spell on the crest of the devil. From the moment the pact is sealed, eternal pleasure is guaranteed; and along with that, the man is bound in eternal submission to the devil. A man will even come to experience arousal and take delight in submitting to her.

Be careful, otherwise they will lure you next into eternal depravity.

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Context

Had to rebuild Demonica from the ground up as I was not really satisfied with the older version. Redid the horns and the tail, actually I'm quite happy with the results of the tail specially. I think my best one so far, it's full collidable and wickedly compliant.

Also the screenshot this time is done through 100% VaM Lighting. What you see is what you get 🥰

Links:
-Demonica - Link in Discord
-Hair by Oeshii -  Madmoiselle  
-Clothing by Oeshii -  Eye/Iris Reflection   -Link Copied from Free-Clothing on Official Discord
-Script by NoStage3 - UnityAssetVamifier

Notes:
-Inside you'll find Demonica Look (Scene + Custome Unity Asset for [Tail] +Clothing Applied)
-Troubleshooting - You need 1.9 Beta Opt In to access the AddonPackage.
-Troubleshooting - If your look does not look like mine in the screenshot, it is because your graphic settings is set on low.  Image
-Tail Troubleshooting - Attach the CUA onto the "Abdomen2" not the " Abdomen2Control" Then Link it.  Image
-Tail Troubleshooting - To keep the tail locked and attached without wobbling at the root from your figure, you have to go to Physics Object under CUA then Make (Drag + Angular Drag) to 0, afterwords tick off Gravity and then Tick on Physics. Once done, go to Physics Control and on the top you'll find Hold Rotation/Position spring, make them both 1.000.000 by hitting the x10 button twice then dragging the slider all the way. Image
-Tail Troubleshooting - After selecting from the Asset Package (DemonicaTail) Load NoStage3 plugin "UnityAssitVamifier" and use the following settings.  Image