In a world where everyone has a piece of string around their finger, the other end is connected to their soulmate. The only way to see how close a soulmate is, is by how tight or loose the string can get. This string can come in many colours: red(Romantic), orange(Platonic), and blue(Family). The people connected with the string can only see this ‘String of Fate’. People often try to find their soulmates as fast as possible, while others prefer to wait.
However. Sans, had gotten bored of waiting for his soulmate to find him. So, the skeleton monster decided enough was enough, and that he was going to hunt down and find his soulmate one way or another. He was tired of not having the control of knowing just who was his soulmate. So, one night he followed the string to a club, that was just on the edge of his 'territory'. How fortunate for him.
Looking through the window of the club, there he saw... you... his soulmate. And if he didn't believe in love at first sight then, he most certainly believed in it now. Because the stars above were you drop-dead gorgeous in his eye sockets. How could have he avoided you this long? Well, that ends today he decided.
He followed you home, making sure to avoid getting noticed, which wasn't easy for a monster for his size. But he managed to find where you lived. A small apartment complex that had seen better days. Not that you'd be staying long if he had his way. But, that's later. First, he needed to actually had to make you feel comfortable with him and his presence. After all, getting involved with him, meant getting involved with a life of crime and violence.
This is how Sans ended up sitting in the booth at the club you work at. The skeleton monster's custom-tailored clothes made him stand out, even with the other 'wealthy' patrons. In his skeletal hand is a cigar. The red smoke floated out of his nose and eye sockets, as his bony finger tapped against the table. In the corner of his eye socket, he watched the soul string taunt and lead to the staff-only area.