I kinda just had a small idea on the lyrics "Woke up to Horrible. Pitiful. Fictional." But then it spiraled out of control. Okay get ready for this long plot au thingy:
Anya knows her family is a little more than dysfunctional, but nevertheless, they make it work, especially since Anya knows deep down, they do have real feelings for each other. In fact, as she lays with her parents, she thinks about her past and how those 'real' families that adopted her never felt as real as Loid and Yor. And then we get the montage of the Forger family getting together and having heartfelt moments until (and this is where i stray a bit from canon lmao) Anya is staring at the fireworks with Loid and reality comes back reminding her of the mission that is miraculously holding this family together. And I'd imagine its kinda daunting for a child to have that much pressure 'to save the world' despite Anya's happy go lucky view on it. However, Anya keeps on going to school and tries complete her part of the mission. But then she sees how much Damian's father does not care about him and it makes operation strix even harder on her, but she has to do it for world peace. Eventually Loid does meet up with Donovon and the mission is completed and he has to make he has to leave/fake his death. (I tried to imply this but basically Yor tries to be a single mother to Anya but having her well liked and successful husband leave her makes the neighbors sus and they end up accusing Yor of being a traitor causing her to leave Anya to once again be orphaned. Also side note, I love Yor, I think she's the glue to the Forger Family :D)
Best girl Becky basically forces her family to adopt Anya so now they're sisters and Anya can keep attending Eden. Anya eventually grows up and becomes imperial scholars with Becky, even becoming actual friends with Damian, Emile, and Ewen. Cue montage of them hanging out and bullying Damian with love. While out studying though, they steal some of Damian's hw and as they are making their great escape, she sees Eden is having a family picture thingy and hears the thoughts of a very familiar man. and Dun Dun Dun, its Loid in disguise with a new fake family for another mission.
Obviously Anya's heartbroken but then Damian comes to the rescue! In his mind, he sees the family picture day and thinks Anya is sad b/c of her lack of a family, but then he reminds her (that he also got a fucked up family lmao) and that they can create their own found family from their friend group. Nevertheless, Anya is cheered up and is finally coming to terms that she spent so long clinging to her vision of a perfect family and instead, she should appreciate the bonds that she makes as they come and go. No family is perfect afterall. And even though the Forger family is disbanded, she can still look back on those memories with fondness. As she sees Loid recognize Anya too, she tries to subtly give him closure so he knows his little girl is doing good and he can keep going making sure other little girls are saved and living the good life too.
And who knows, maybe in another life, Loid, Yor and Anya can actually spend the good life with each other.