Dragon Ball Sekai (Male! Saiyan Reader x isekai)

The hero thought he was alone in this world as a pod came crashing down to the land of Mudonia. A planet full of many sub human species as the hero was from another world thought he was the only one as a rift opened on his new home a small pod crashed landed revealing a little boy with a monkey like tail. As they grew together as brothers they set up the world to become National Level Adventurers

You are (Y/n) the boy with unknown origins as the stories if the world full of magic and fantasy