How Does Mia Fit Into all This?
You’ll notice that Mia sometimes refers to the Bakers as her family, even though Ethan, as her husband, knows that they aren’t related. This is because she’s been infected as well, but how? Remember that “babysitting” job where she mysteriously disappeared? Turns out that she was more of an escort to a BOW than a babysitter. She is an agent of the company that created Eveline, so she was with her when everything started going wrong.
As part of the program, the weapons are treated like children and given handlers that act as parents. This is to help them blend in and keep everything normal. Mia, along with her partner were with Eveline on a tanker, delivering her to a client. Somehow Eveline became unstable. It’s not entirely clear, but Mia’s partner says that it’s his fault. Eveline takes over the tanker and destroys it, right after mutating Mia so she can stay with her as mommy forever.
Unfortunately, it was the Baker family that discovered the destroyed tanker in the bayous near their home, leading to them becoming part of Eveline and Mia’s extended family.
Mia posed a huge problem to Eveline, though, as she continued to resist, probably due to missing her husband, Ethan. Chances are that it is Eveline who forced Mia to message Ethan, triggering the events of Resident Evil 7.
