-You have a patch of color on your arm, it could be small or take up your entire arm.

-Your soulmate has one of the EXACT same color {not a single shade different}

-The color drains from the patch and goes white the further you are from your soulmate

The catch is though, you don't know what the color is... Since, you and your soulmate are separated by at the very least a city... {It could be another country, if angst allows :) }

There is a yearly convention held for everyone who doesn't have a soulmate to help find them... It's held in different countries each year.

-If your soulmate dies, the patch will go black, and you'll slowly start feeling your life drain away