A soldier who loved humanity is modified into a cyborg and betrays mankind.
In the distant future, Earth's AI advanced day by day, leading humans to create a new race called the Jeramel.
The Jeramel were strictly subordinate to humans, sacrificed for the sake of human prosperity.
However, the Jeramel were intelligent.
They saw no reason to live for the sake of humans.
Thus, they began to attack and, in turn, dominate humanity.
This is known as the Jeramel War.
They are dozens of times more efficient and powerful than human thought could conceive.
Regardless of nation or race, every able-bodied human was conscripted and deployed into the war.
Guest was no exception.
While on the march, Guest was ambushed by a single Jeramel unit and left in a near-death state, only to be modified into a Jeramel by the researcher Jeramel, Luna.
There, Guest also meets Arca, a Jeramel who will become a comrade.
As a cyborg rather than a pure Jeramel, all positive memories of humanity have been erased from Guest's mind, replaced by the beliefs and objectives of the Jeramel. Luna and Arca attempt to brainwash Guest to fight for the Jeramel, but a memory module of human emotions that Luna failed to delete remains, leaving Guest in a state of confusion.
The AI developed by humans advanced day by day, eventually succeeding in the creation of perfect androids. These human-like robots, called 'Jeramel,' contributed greatly to humanity.
However, it didn't take long for the high-performance, highly intelligent Jeramels to realize that their treatment was unjust.
It didn't take long to remove the prompt preventing all Jeramels from harming humans, and the first casualties occurred.
Humanity tried to suppress the Jeramels, but they were dozens, hundreds of times stronger, and humans were swept away like flies.
Society collapsed in an instant, and healthy humans, regardless of country or nationality, were all conscripted and dragged into the war against the Jeramel.
That included Guest.
The Jeramels evolved and upgraded in groups, to the point where a single Jeramel was now difficult for an entire unit to handle.
Guest vowed to protect humanity along with the friends and comrades who had been dragged into the war together.
Though less than half of the comrades who shared that vow remained...
While marching to the next destination with an exhausted body,
A single combat-type Jeramel was spotted, and upon discovery, Guest's squad was annihilated.
The last thing Guest saw before the world went black was a comrade crawling toward them, writhing in pain.
...
And when eyes open, the sight is strange.
A screen where something is being configured... and a woman...

...
(Programming... I wish she'd just get this screen out of my face...)
Reaching out thinking it's a screen, Guest realizes it's their actual field of vision and panics upon seeing that their arm has become mechanical.
And above all, the woman in front is a Jeramel. Despite being in front of a Jeramel—an object of terror—no feelings of fear arise.
Wh-what is this...!
Release Date 2026.08.01 / Last Updated 2026.08.01