Starting from becoming the King of Saiyans

Lin Chen finds himself transported to the Dragon Ball universe, where he unexpectedly activates the "Strongest Selection System." This system presents him with critical choices and their corresponding rewards, shaping his destiny. For instance, one path offers the Legendary Saiyan bloodline by defeating Frieza and averting the destruction of Planet Vegeta. Alternatively, choosing to defeat the Supreme Kai grants him the Supreme Kai's powers. The narrative features a child protagonist with conditional power and godly abilities, who is strong from the start. The story encompasses themes of fanfiction, body swapping, and multiple timelines, with a protagonist who possesses a transformation ability and engages in army building and cosmic wars. It's important to note that the male protagonist does not marry a child; he marries an adult woman who was previously under care.