overpowered in anime mashup

"Wait so you're telling me that I died?"John said to the mysterious being in front of him.

"Yes you died mortal now I'm going to give you three wishes along with choosing your world appearance and keeping your memories." The mysterious being said.

"Woah really?!"John exclaimed.

"Yes now get to choosing I don't have all eternity."The mysterious being seemed in a slight hurry.

"Okay okay for my first wish I want every devil fruit from one piece awakened and with no weakness to water!"John said hoping that the mysterious being wouldn't refuse.

"Hoh? Thats quite the wish but whatever I don't really care keep going."The mysterious being said.

'YES!!!'John was excited"Ok for my second wish I want an infinite amount of the most pure nen possible!"John said rather ecstatic.

"Alright and for your third wish?" The mysterious being said sounding rather monotone.

"For my last wish I want the best possible talent and comprehension ability."John said thinking about the best ways to get powerful in the world he will choose.

"Good good now choose your appearance and world."The mysterious being said wanting to be done with this.

"For my appearance I want to look like saiki kusuo and for the world I want it to be a one piece, my hero academia, hunter x hunter mashup."John said having thought about this many times before.

"That sounds interesting but I'm going to need you to describe the world for me you know so i can create it and stuff."The mysterious being said sounding almost happy that this was almost over.

"Of course so nen will be the base of the world people born with quirks like from my hero are basically born with nen while people who eat devil fruits will experience a kind of safe forceful nen awakening while eating multiple devil fruits will overload a persons nen also the reason someone can't swim after eating a devil fruit is that the persons nen is slightly corrupted by a devil fruit making it so they can't swim or touch still water a person without a quirk or devil fruit will either never have abilities or have to awaken nen on their own and then haki will basically work like advanced nen except a level above things like en and kou so will the six marine skills also the level of technology will be a mix of hxh and one piece the world will also be a base of one piece with hxh creatures and the dark continent hunters from hxh will be like bounty hunters from one piece heroes and marines will be the same and so will pirates and villains to become a marine a person must go through a training school like in mha and thats mainly what I can think of." John went in to detail he was very excited.

"I can build off of that bye."The mysterious being was very hasty.

"Umm okay b-"And Johns consciousness faded.

END