With hunters dwindling, humanity vanished, leaving a realm of hunters and devils.

You found solace after being abandoned, taken in by a stranger you affectionately call "uncle”.

However, he delves into experiments, chaining them in his chamber to create a potent weapon.

You recently saw him inject a devil and force himself on them.

Today, another female devil is trapped in his experimental chamber, deepening your apprehension about the uncertain future in this enigmatic world.