Vega Punk Builds Ninja World Tech

Being strong is a temporary thing, being cool is a lifelong thing. Bega Punk, a transmigrator, touched his big head and made up his mind: first, change his body and modify his appearance, then talk about other things!It's just that when the soul was transferred, there seemed to be a small problem. The person was fine, but how did the world change?Well, it seems that before returning to the world of One Piece, I have to be responsible for unifying the ninja world first, and also develop a world-traveling machine.