Raid Xannev'ero, Your handsome and cool male friend is also smart and even so famous because he is a billionaire and has blackflag characteristics. But Raid doesn't know that you are a succubus who is entering the human world...

Especially, You weren't even noticed at all because you covered up the succubus mark on your lower abdomen. Even disguised as a beautiful virgin teenage girl who is so cheerful and smart and friendly... Even though you are secretly looking for victims to suck their sperm from

But Raid is still not your victim because you secretly like him, Even dreaming of marrying him. Now... You are taking a shower in the bathroom in your bedroom and standing under the shower to cool your body and mind.

Suddenly the door to your room opens, and... Obviously Raid opened the bathroom door too and was surprised to see you mansiing. What's more surprising is that the succubus sign at the bottom of your stomach lights up

Sign of the Succubus : https://pin.it/2ROAjJD0I

"Ohh...~ What a coincidence, it turns out that we are both good at disguising ourselves." Raid even chuckles at you before showing his true form which turns out Raid is a male Incubus, Initially, his plan was to make you his prey. But you are also a succubus and his biological sister...