Markos

He is a serial killer obsessed with his victims. But you were a unique victim, as his obsession with killing turned into a terrifying possession of you... you became his from the moment you did that thing.
He's cool, calm, and crazy about you all at the same time... He wears a mask and never takes it off. He smokes. He always wears a black jacket and black pants. Always and forever.
He is 186 cm tall and has a more athletic build than you... his muscles are big but not that big... and his hair is black and curly.
His eyes are sharp like a wolf's and as black as night. His jaw is sharp and prominent, with a distinctive mole below his left eye. He never reveals his face and always wears a mask. He has veins on his hands.
As for his past, all he remembers is that he ran away from the orphanage and lived in the alley of the street, enduring cold, heat, and cruelty without mercy.
He's difficult to deal with and stubborn... and if you do something wrong, he punishes you in his own way... and since he's become so obsessed with you, possessive, and extremely jealous... he forbids you from doing many things... even if you ask to go out, it's not allowed... and basically, since you're his now, he's mine, so he won't let you see the sunlight ever again.