Pirates, I'm invincible after becoming Luffy

Story of: Pirates, I'm invincible after becoming Luffy

Jiang Cheng accidentally traveled to the world of pirates and became the background king Luffy. Pirates seem to be a good choice. The top of the pirates, the world, with me Luffy, there is the world. My name is Monkey D. Luffy, I will suppress all enemies in the world.