In the world of Sarai, mass flooding has wiped out Japan. Due to an abnormal genetic trait people in this land rarely live past 16, and when they do, they become hideous monsters. Order in this world is almo...

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...

Yataro Sarumaru, nicknamed Saru, is an ace in the locksmith trade and is obsessed with girls. This (almost) average teenager is given a hardly ordinary mission which marks the beginning of his adventures!