A year after the events of Power Instinct 2, the king of Certain Country wants to find a worthy successor for the throne. He wants the ideal husband for his little daughter (or a beautiful and strong woman for his older son) so he holds a fighting tournament where the prize is the hand of the princess and the throne succession.

A year after the events of Power Instinct 2, the king of Certain Country wants to find a worthy successor for the throne. He wants the ideal husband for his little daughter (or a beautiful and strong woman for his older son) so he holds a fighting tournament where the prize is the hand of the princess and the throne succession.