One piece:Monster zero(COMPLETE)

He is Yuji 15 years old otaku his favorite anime is naruto but if you ask him if he has a chance to be reincarnated where he wants to be reincarnated he will choose ... IF YOU HATE THE SLAVE THING IN THIS STORY DON'T WORRY IT WILL VANISH LATER IN THE CHAPER. Warning: all the characters and the story are not mine so credits to the owner. English is not my first language so expect my grammar to be wrong