<br/>Back story and such is looking good for the pair and well what I said about the merit/flaw thing still stands, and I am sure if you want you can work out a geas/curse flaw to represent that death thing :)<br/><br/>Perhaps just some sort of Geas, which was meant as a blessing originally but sort of turns out to have is disadvantages. The pair being destined to be bound together through incarnations and memories of there ancestors etc, being unable to separate from one another's company due to the "blessing" and even death being unable to keep them apart as the Geas will take it's toll.<br/><br/>Quite nasty of course but well it does sound interesting I was curious originally in which way you meant it.