Pinky Promise :: kth

In which people have a piece of red string tied around their pinky, that can only be seen when one is within distance of their soulmate. The red string appears and is connected to their soulmates, bringing them to one another.

"It's said that the red string is around a pair of soulmate's pinkys because it's a type of pinky promise. A promise that somewhere out there, there is someone for you, who loves you for you. A promise that you will find one another, no matter what."

[#2 in the soulmate series]