"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. Then one day, someone murders the Founder.
Following their death, the Founder is resurrected as Rei Shimobe (protagonist), by a miracle known as “the Power of God”. However, the resurrection is incomplete—their memories are gone, and their life limited to a mere four days.
Two self-proclaimed "angels", God's messengers, arrive and declare to the protagonist that to achieve true resurrection, they must overcome "God's trial": identify and kill their murderer.
Thus begins a high-stakes, four-day hunt for the truth, with their own life and the fate of the world at stake.