He is later revealed to be the true identity of Checker Face (チェッカーフェイス "Chekkāfeisū"), a man with iron hat who is the one responsible for inflicting 'The Curse of The Rainbow' to Reborn and the others, making them Arcobaleno. He appeared in the Arcobaleno's dream and offered them a way to be freed from the curse that had turned them into babies with by creating a battle royale where the Arcobaleno have to choose seven people to be their representatives to fight in their place and the winner will have his or her curse removed. However, this turned out to be a huge lie and his true intention is actually to determine the seven strongest people and intends to turn them into the next Arcobaleno without any intention to free the current Arcobaleno from their curse.