At Babylon Laboratory, Sirin lived as if she were in hell itself, in the depths of an abyss.
Aside from a life like imprisonment, she was taken to the laboratory for experiments from time to time. Once the experiments were over... they would toss her back into that cage.
From beginning to end, no one there ever saw those girls as human beings. They were nothing more than experimental materials.
Experimental materials that could be used up at will.
The corpses of dead girls were often thrown out of the laboratory and buried in the woods not far from Babylon Laboratory.
If not for the large amount of Honkai energy contained in those girls' bodies, making them impossible to dispose of casually, they might have simply been tossed onto the ground and left for the wolves to devour.
Even in hell, Sirin still had a small piece of beauty in her heart. That was... her good friends, Aurora, Galina, Agata, and Bella!
Their presence gave Sirin a sliver of courage to keep living.
However, the good times did not last. Although Aurora, Galina, and the others did possess Honkai energy antibodies, they were far inferior to Sirin's.
Through one human experiment after another, Sirin watched her friends die one by one, until in the end, she was the only one left.
Unlike the other test subjects, Sirin's body displayed an exceptionally strong tolerance for Honkai energy, and she even directly absorbed it.
To the Schicksal researchers, this discovery was cause for great joy.
They believed this phenomenon was exactly what they had been searching for.
In order to study Sirin's physical condition in detail and see the limit of how much Honkai energy she could absorb, Schicksal's researchers subjected her to even more intense experiments.
But... Honkai energy had never