A few decades have passed since Unknowns were first brought down. It isn't until recently that they start reappearing, plaguing the streets of Japan. Unknowns are a species that are able to hide their Glory, therefore blending in with, or becoming "unknown" to society. The epicenter of this resurgence: Matsumoto Preparatory School, in Tokyo. The principal, Oji, appoints the top junior at Pegasus Corp, Ky'ari Ashida. His job: to eliminate the Unknowns & find out the truth about how they were brought back. All before the next school year ends.