The Representative Battle of the Rainbow is a battle between the representatives of all seven Arcobaleno. The Arcobaleno whose representative wins the battle is granted release from their Arcobaleno curse, their baby bodies; or, in the Sky Arcobaleno's case, the removal of the curse of their short lifespan. However, this battle's reward is merely a ruse for Checker Face to determine the next generation of seven Arcobaleno, who will be the members of the winning team. The planner of this battle is Wonomichi, Checker Face's subordinate.