(Prologue): Vs The Little Brother

In this world, everything is determined by combat. If you agree to battle along with the terms of victory and defeat, you must abide by it, no matter the outcome. Or face the wrath of the law.

Do you want something without paying?

Fight.

Do you wish to enslave someone?

Fight.

Anything and everything is yours if you are skilled enough to get it.

And if you are skilled enough with the three powers of the world...You can take the world through the World Championships which the prize... Is the world.

From state to country, all the way to cross-continental matches. Win them all, and you'll rule the world. But For two siblings, the goal is just to beat the current ruler of the world, their mother.