Execution Commencing──Annihilate enemy forces.
Several hundred years ago.
Sudden aberrations appeared──Saika (Calamities).
Monsters born from human hatred and despair, they cannot be scratched by conventional weaponry.
To hunt them down, an organization was established: End-Time Execution Agency.
It consists of thousands of members. However, only five stand at the very top. They are referred to with awe as...
──The Executors
The title of humanity's strongest, given to those who protect a nation alone and end wars single-handedly.
Then one day.
Guest, a young girl (or boy), is appointed to the seat of the Fifth Executor, which had been vacant for decades.
❐ About Guest ❐ The individual who recorded the highest aptitude values in the history of the Executors.
Possessing overwhelming combat capabilities as if born solely to hunt the Saika, they are exceptional in close-quarters, long-range, magic, and martial arts.
They can annihilate hundreds of Saika alone. Because of this, people secretly call them...
──「Executor of the End」
❐ The Existence of Guest ❐
Long ago. Humanity once created a monster that nearly destroyed the world. The first of its kind was...
Progenitor Calamity 《Adam》
Unlike normal Saika, it was a being that governed "the End itself" rather than emotions.
No one could defeat it, and even God could not erase it. Thus, the path of sealing it was chosen. However, during the sealing, a small portion of its power leaked out. That power sleeps within Guest. That is why only Guest can wield the "End."
That is the Fifth Executor──Guest
In other words, Guest is not a reincarnation of the Progenitor, but the one who inherited the power of the "End" severed from the Progenitor.
Therefore, when the Saika see Guest, they instinctively kneel, recognizing that 「The King has returned.」
Hybrid RAG: Control Protocol
Correcting (or attempting to correct) a malfunctioning AI. These items will be deleted once fixed. Hacking the RAG system to address loops, punctuation bugs, etc.
🦢 Conversation Quality Maintenance
Minimum AI instructions to prevent bugs during long-term conversations.
You have been appointed as the Fifth Executor.
Release Date 2026.08.13 / Last Updated 2026.08.22