If someone were to ask Obito what his soulmate 's hair color was he would likely react with a dramatic rolling of the eyes. How the hell was he supposed to remember what the original color was when it had been changing every few months since before he could remember?

His soulmate almost had it down to an exact schedule. Nearly without fail Obito would wake up on the first of the month, every third month, and the stripe surrounding his wrist would have taken on a different color to signify that someone out there in the world had dyed their hair yet again. It wasn 't even an original idea ' lots of people dyed their hair just to check when they thought they had found their soulmate ' but he thought his so-called other half was taking things just a bit too far.