The girls never died that time. That one girl used her last remaining life force to freeze time so that the other girl can save them with her teleportation stick.
As for how they are fighting the admins now, we still don't know the full situation. It will probably be explained some time later.
Yeah I saw that, but I don't understand how they are alive now. Because Rina literally got her face mashed in by the hip-hop admin and now they're fighting the masked admin? What I'm confused about is how they were healed.
My best guess is that despite being so gravely injured, the other girl was still able to heal them using her box cutter stick since they weren't dead yet. We've seen firsthand how powerful the stick was, since it managed to fix the shitty older brother's broken jaw.
I thought they were all owned? After the Kayo flashback how did they all come back to life?
Is it just me or did they skip some details? All of a sudden we're just seeing them own site admins?
Sorry in advance if I missed something but... I'm pretty sure I didn't miss anything