My Sheep, My Sheep, My Sheep Sheep Sheep

What kind of light will a seemingly useless Yamaguchi-san skill radiate when paired with a Devil Fruit? Duke: I didn't understand it before, until one day, I remembered that Devil Fruit. The world changes because of me! My name is Duke, and I am a swordsman. Others call me Duke the Sheep Warlock. But actually, I would rather people call me Swordsman Duke. My sheep, my sheep, my sheep, sheep... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.