One Piece: Gun God Century

A young boy accidentally traveled to the world of pirates, awakened the Gun God System, and assisted him to become the only Gun God in the world, opening up his century. Warring States: "He is a legend and a disaster." Hawkeye: "Maybe his marksmanship is the best in the world, but his swordsmanship is terrible." Garp: "He's just a little kid who doesn't make people worry." Luffy: "What happened to my uncle?" ... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.