One click shinobi system in the world of one piece

My life was good, I had friends, a loving family, and a good job, I loved my life and my world, so why did God send me into this world filled with super-powered assholes, almost all corrupt marines, and noble assholes who all seem to be want my ass? - I have no taboos, which means that I will have no problem talking about things like gore, r*pe, torture, racism, and other things like that. That doesn't mean I condone those things. That's about all I wanted to say, so enjoy your reading. (No harem)