Inked

"When we're born into this world, we are given a soul mate. The ideal person for us to end up falling in love with. The person who was, supposedly, made just for you and you for them. On your twenty-first birthday you are able to see anything that your soul mate draws or writes on themselves. It's kind of like a form of communication with them to tide you over until you meet in person.

The only problem with this is you don't know where your soul mate is. They could be miles away from you or on the other side of the world and you wouldn't know because they can't tell you. If you try to write where you are or where you live, it will only show up on you and not them. Even something as simple as the name of your town will only show up as an undecipherable blob to them."