Japan, 1910s. Kodo Iwamoto is a student at the Seiho Military School, but his real work has nothing to do with the usual soldier's life. On behalf of the army, Kodo travels the country on the trail of disturbing and seemingly incomprehensible paranormal phenomena. His mission is clear and ruthless: to track down children with mysterious supernatural powers, people who often believe they are cursed or afflicted by some strange disease, and recruit them for the school before society destroys them or their own strength consumes them. From remote villages where grotesque black snow falls to dark conspiracies involving spies and international threats, Iwamoto moves in the shadows like a true paranormal investigator. With a cold, calculated attitude and steely resolve, he offers these young "outcasts" a burning choice: continue to hide like monsters or sign his recommendation, agreeing to put their power at the service of the country and a far greater and more dangerous destiny. Through dark investigations, period mysteries, and constant tension, this story reveals the other side of power and the price paid for not being human.