A Twisted Reflection

Hello~ So, I am looking for a DOMINANT male partner. I have a bunch of sick and twisted prefrences and I don't expect anyone to really fullfill all of them just those you're comfortable with as long as you respect that I'm really into mind games and your character should ultimately be evil even if he has 'kind' phases to confuse my character. 

World description: 

There is a hidden world deeply conected with our darkest desires. But the world is not a Universe in itself. It once was populated by the shadows we had created.As time passed by, many new generations had been created in said world. Sadly, the young of the world were so cruel and sadistic to eachother that the King of the world had trouble controlling them. Afterall, they were the evil within us once. There was hope though. A young scientist found a portal to our world. When crossed, a person's existence basically vanishes and it's only their immortal soul inside an immortal body. Sadly, only those who's ancestors were partof the creation of the second world could travel. The king had an idea and thus, they began kidnapping those who could join them,making them slaves and lettingout their desires, reducing the overall crime rate. 

Requirements:

I don't have a lot of requirements. I will send the actual starter once you ask for it. You can ask all questions here as long as they're related to the overall RP. Those regardin the character I will later on use should be kept until I send the starter as most will be revealed there. I do ask for a decent English though!