The story behind her claws and tails

In the world where a mysterious, government-funded organization hides anomalies from the civilians, one of their subjects manages to escape. After losing the Foundation's pursuit she accidentally falls into a deeper hole, as another organization attempts to hunt her down. In a world where she doesn't trust anyone aside from her fellow SCPs, who aren't there to save her, she meets someone, who manages to save her from certain death. Knowing humanity's worst side, she is reluctant to accept the help, but is forced to due to the circumstances. Will she manage to trust again? Or is her past going to drag her down?

The SCP Foundation had a containment breach, and one of their SCPs managed to escape. Of course, similar things happened in the past multiple times, and O5s were familiar with situations like this. What made this matter an emergency though, was the fact that the escaped object is a keter, and a rather sadistic one. They have to use everything they can to try and find her before she kills anyone. Very quickly however, they realize that finding her is going to take longer than initially expected...

New chapters are published on Sundays according to the CET timezone.

Constructive criticism and comments are highly appreciated.

Warning! As of the moment of writing this, the story contains graphic depictions of violence, which are severe enough to classify this story as "mature". Depending on which ending I choose for this story, more warnings may apply in the future which will further solidify the "for adults" classification.