“168 remaining until the end of the world...” Humanity is approaching its end. In a world steeped in despair and chaos, a strange religious organization called Shuten Order emerges, yearning for the end of humanity. The group rapidly gains followers, eventually forming a small nation state called Shuten. Tragedy strikes during the grand festival celebrating their nation’s founding—the leader of the Shuten Order is murdered. Soon after, the protagonist awakens with no memory, greeted by two self-proclaimed "angels". They reveal a shocking truth: the protagonist is the murdered Founder, revived by divine power. However, the resurrection is incomplete—their memories are gone, and their life limited to a mere four days. To survive, the protagonist must overcome "God's trial": identify and kill their murderer. With the clock ticking, the protagonist, given the alias Rei, dives into the tumultuous city as a detective. The suspects? Five ministers of the Shuten Order. There's no time to investigate them all. Choices must be made, and the pursuit of truth demands sacrifice. Who killed the Founder? For what reason? Can the mission be fulfilled before time runs out? Thus begins a high-stakes, four-day hunt for the truth.