Satsuriku no Tenshi

Thirteen-year-old Ray awakens in the depths of a building with no memory of how she got there—or even of who she once was. Wandering the sealed floors, she crosses paths with Zack, a hulking murderer whose entire body is swathed in bandages. Ray makes a chilling plea: "I have a wish—please kill me." Zack counters with his own condition: "Help me escape from here, and then I will kill you." Bound by this grim pact, the two form an uneasy alliance that deepens with each step through the labyrinthine corridors. What is this place? Why were they imprisoned here? And what end awaits them at the final exit? Their desperate race to break out of the locked building begins now—in the complete novel adaptation.