Ginya Otonashi is a college dropout who works part-time for a pachislot publishing company while aspiring to become a novelist. One day, Ginya comes across a secret organization and gets pulled into a competition to become #1 in "Pachi Battle," which is all a part of the Slotseum, a pachislot competition. (Source: ANN)

Following a 15-year long seclusion in a research facility, brothers Naoto and Naoya Kirihara finally escape after the psychic barrier separating them from the outside world collapses. Abandoned by their parents, who feared their supernatural powers, the siblings now strive for a normal life. However, the two are soon forced to use their talents to save lives as the "minus energy" begins to engulf the world and crimes involving psychic abilities gradually multiply. Learning to control their capabilities and using them for the sake of others will prove challenging, for Naoya is traumatized by his psychic abilities that allow him to read people's minds; while Naoto has hurt many close ones due to his unstable psychokinetic powers. With the help of the mysterious Shouko Futami, who can see into the future, the Kirihara brothers must find a way to foil the plans of an organization that seems to be linked to the harmful events related to gifted individuals.