One Piece: Marine's Paper Dragon

The world of One Piece is full of wonders beyond comprehension, Devil Fruits that grant users wonderful powers at the cost of being unable to swim, and a world full of adventures.

Yet standing at the top of this marvelous world are the Celestial Dragons, World Nobles that have the ability to do literally anything they so desire with absolutely no consequences, these people are the scum among scum, monsters who shouldn't even be called human. These self-proclaimed "Gods" are what our protagonist starts as.

Everton Oxworth, the oldest heir to the Oxworth family, experiences some complications during a vacation, and has a dramatic shift in world view, and now has the goal to make the world a better place by joining the Marines.