When the Great Pit of Babel opened and unleashed hordes of terrifying monsters, it was the end of the world that once was. Now, the pit is a destination for explorers seeking riches and power—if they can survive, that is. Ajiyama Tadato lived a relatively normal, uneventful life before the pit appeared, but now he may have found his true purpose and a way to use his strange ability to hear “hints.” Armed with the power to analyze and predict the otherworldly beasts, he sets out to abandon his ordinary past and conquer the dangerous creatures of Babel!