Sky, a young orphan who lives on the streets, receives a summons from the Dungeon Array to venture into a magical world teeming with monsters and other Awakened. However, he makes a crucial error—he hesitates. Thrust into a domain where the weak are destined to fail, he must fight to stay alive. But when his initial Dungeon Run takes something far more valuable than his life—his soul—Sky comes to understand that death was merely the beginning of his troubles. What cost will he incur for survival?