Not to be nitpicky or anything, but whats the original word your translating into "normalfag"?
As far as I know, normalfag has very specific roots in 4chan culture and it's surrounding online communities. If he was a 2chan user or something, I could sort of see it make sense, but as he is presented in the manga, normie seems like a way better option. Even then, normie carries a lot of meaning that goes beyond "normal person"; and I feel like it's way more popular among people who spend a lot of time in internet subcultures.
I don't really get that vibe from Nao at all, or any of the other characters for that matter.