Anya has a twin sister, Lenya, who is a reincarnated mafia queen, and already created to destroy all enimines but Anya made her into a very soft-hearted person.
Anya was an esper while Lenya twisted into a killing machine, a weapon to destroy the world and humanity, and if it wasn't for Anya, Lenya would have gone onto the bad side and she would have become evil but Anya was her light.
Soon as they were in an orphanage they both get taken in by a spy, An assassin, and a spy, An esper, and a mysterious girl what could go wrong with this type of family? well, let's see, blood, blood, and a pure little girl.
Anya had heard of Bondman's fanfic published with similar concepts of what was happening, but never read them, nor did she ever believe them. However, she couldn't deny what was in front of her... A being of another universe, a "watcher and observer's" universe, deciding that they needed to see everything that happened and would happen, and she was freaking out!
Please have patience with me, because english isn't my first language, also, there will be a more detailed explanation on the first chapter about the details of the fanfic. I also made the transcript myself, so sorry if it's shit, it took fucking too many hours
The manga and anime Spy x Family does not belong to me, only the plot os this history.