Chapter 1: Yakushi Yu

I'm called Yakushi Yu, and I've crossed over to the world of Naruto.
Without any bloodline limits or protagonist's plot armor, what can I do? I'm feeling quite desperate!
Unexpectedly, I awakened a devil within me.
Not only did I gain the power of Doflamingo's String String Fruit, but the puppets I created also possess the abilities of Devil Fruits.
Well, things are starting to get interesting