When drawing One Piece, Eiichiro Oda was heavily influenced by the manga Dragon Ball, and had the series in mind when designing his characters. Oda has said that when he was creating Luffy, he was thinking about "manliness", because Dragon Ball had already done all the things that a child could possibly be happy about. Luffy from Romance Dawn V.1. Luffy shown as an adult from Romance Dawn V.1. Luffy from Romance Dawn V.2. Luffy's Jolly Roger in the first two versions. Luffy from Romance Dawn Chapter 1.