By the time he realized what was going on, Yamagishi Amizuna, a salaryman, was in a strange cave, and in front of his eyes was a giant black tiger...!? When he thought his life ended after being attacked by...

The story revolves around "jushiki" (lit. spell equations), the equations that govern the quantum constant "h" of action, change the laws of physics at the local scale, give birth to TNT explosives and poiso...