Strillo was cursed at a young age after stumbling on a gather of fae. Having 4 arms themselves, they had thought must have been hard on humans for only having 2 arms and thus they left her with an extra as a gift. In their eyes, it had made her not as good at them, but close and therefore superior to all other humans. Her hair growing white from then on was a side effect as well.

Due to the way that it had been created, removing it would severely damage her nerves and the risks of her being unable to move after were too great. Deciding to keep it, it took her many years to develop the motor skills to control it. At this point in her life, the biggest inconvenience is having to alter anything she buys in the store specially in winter when cutting a hole isn't enough.