I Am a Sweeper in One Piece

I traveled into the world of One Piece and awakened to the most useless system: I must clean a toilet every day, otherwise it will explode on the spot. The leader of the Revolutionary Army is my buddy, the Four Emperors are my poker buddies, and the Navy Marshal begged me not to sweep the door of his house. Until the war, I walked into the battlefield holding a broom: "Who shit in the square?" Akainu and Whitebeard pointed at each other at the same time: "Him!" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.