I impulsively wrote this when I was bored. Future Gohan, Future Goten, and Future Trunks go to One Piece. That's the idea so far, anyway.
During the voyage of the Straw Hat Pirates, what if Luffy already have a vice captin on board. And it so happens to be his brother, Son D. Goku. How would others react to his strength, tenacity, and vigor as he changes the world upside down.
Thanks to a pirate with a unique devil fruit ability, Vegeta finds himself on the Grand Line with a two year old Trunks to look after. When he meets a young man with the power to manipulate fire, he decides to join a powerful pirate group and hope that he can find his way back home. However, it doesn't take long for the World Government to learn about Vegeta's extraordinary powers.
Luffy meets Goku and they have to defeat a saiyan named Vans! Includes my OC
Goku makes a with to bring some one stronge to his universe and it turns out to be Luffy and they battle but its gets interfered