The Arcobaleno (lit. Rainbow) is a group made up of World's Strongest "I Prescelti Sette" of an era, which translates to the "Selective Seven", who each possess a pacifier that represent the different colors of the rainbow, with each color corresponding with their respective Dying Will Flames. Their Pacifiers will glow when a member is near another Arcobaleno. The Arcobaleno were transformed from adults into their infant and current forms in an event known as "The Fated Day" in a contracted job or a Representative Battle, for the purpose of harnessing the power of the Tri-ni-set, which supports all life on the planet Earth. Each of the current Arcobaleno has their own unique "curse" and specific abilities, as well as the ability to emit the Dying Will Flame throughout their entire body, as