Turles isn't related to Goku, although an old issue of V-Jump and some localizations of the Tree of Might movie mistakenly stated that they're brothers. The reason Turles looks like Goku is that ...

More and more lore about Shin and the other Supreme Kais are revealed in Dragon Ball Daima, including a tragic twist.

The introduction of the unforgiving Demon Real came with shocking revelations about the world inhabited by Goku and his friends ... fact that they are born from trees. By the time he was old ...