In My Time of Need | Naruto Fanfic (Gaara)

All ninja know of the Jinchūriki and the tailed beasts which reside inside of them. One-Tail, Five-Tails, and even Nine-Tails. However, there is a tailed beast who no one knows of; a tailed beast which was created by the Sage of Six Paths using the rest of the Ten Tails' chakra which he could not seal into the other beasts.

This tailed beast, unbeknownst to everyone, was passed down from generation to generation from it's original Jinchūriki. It was never awoken. But now, trapped inside young sand-village-ninja Yuna Hitomi, he has awaken. The reason? No one knows.