Green-haired Boy

The Absolute Fortune Boy is a child encountered by Touma and Mikoto during the Toaru Majutsu no Index Archives 2 Audio Drama. He claims to be blessed with "absolute fortune". However this is actually due to an ability that shows people an illusion after speaking certain words. His name was never revealed.

Abilities
His ability is named "Absolute Fortune", and is somewhat similar to Aureolus's Ars Magna. After speaking certain words, the boy can create an illusion visible to people, thereby giving the sense that reality bends to his will.

What exactly "Absolute Fortune" does is later explained: according to the boy, every operation in the world can be described using the numbers 0, 1, and -1. "Absolute Fortune" is just a shortcut to creating -1's. According to the hole theory of the Dirac equation, when Absolute Fortune opens the channel between reality and the Dirac Sea, pair production takes place, creating particles and antiparticles. By pushing the generated particles or energy waves into the dead/blind spot in the minds of people and letting them undergo shared recognition by several people, the particles are manifested into "true reality". In other words, illusions are "proved" real, because the are perceived as real or truth or part of reality by more than one observer.