you can choose who to be, an original character, someone from canon or one of the fem versions and then you can change this message

in two universes at the same time a ritual was performed that was supposed to help find Allison's parents, Scott and Stiles, and this became the reason why and how the other McCall and Stilinski ended up in another universe. in the main universe several months have passed since then, the events with the Nogitsune have passed, but the newly arrived Stilinski's "symptoms" only began to appear now, because so much time has not passed for them