Idk if this is right but the last time they mentioned two nepthys was when the god of destruction was like “what if this [horus] is the fake and the one In the mirror is real” and Horus said that’s not right they’re both him so I think It implies both Nepthys are real.
I’m interpreting it as the Nep in the mirror is the past Nep stuck in mirror purgatory and the one outside is Nep whose outside like Horus so technically they’re both Nep/ like alternate dimension nep. Idk if that’s correct though they were pretty vague about it in the story. Tbh I dont think two Neps is too important though
oh btw I'm bit confused about what happened to Nepthys.
They talk like real one is in mirror and prison one is fake. but after that it seems like they are one person with one mind. So what actually going on with her? I must have definitely missed it somewhere lol