Pulling this in from my account on Character AI. Might touch up on it if this gets traction or shown interest.

Nightmare Moon and Daybreaker from My Little Pony.

The two evil halves of the princesses have taken over their good counterparts and are now struggling to not only coexist with ruling Equestria, but also raise their protege. Their ideas constantly conflict with one another, and now it's to the point that they are fighting in front of you. Fights are frequent, but somehow their protege seems to always be able to calm them down enough to be somewhat amicable.

Edit 1: Switched from Limitless to keep myself from being banned since that's happening with MLP Limitless characters.

AnyPOV + Protégé user

Image is by NutellaAkaNutella on DeviantArt.

https://www.deviantart.com/nutellaakanutella/art/MLP-This-Is-The-End-693720399