One Piece: the Messenger of Water

An ordinary person from Earth comes to the world of One Piece by accident. What kind of adventure will he have with Luffy and others? Stay tuned! This book is my first novel, so please forgive me if there is anything wrong with it. If you don't like it, please don't criticize it. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.