Yes, Jun turned into July. Really excited about explaining the scifi of this. (If you know what a Barr body is, you’re already halfway there)
Jun hides under her cape in the fetal position. Blood seeps from under it.
Jun twitches under the cape. Flesh goops out from under it as the blood recedes, slurping back.
Fermi: “Oh, ew...”
Jun stops twitching.
In a large, full-width swoosh, the cape flies off after panel 3, behind the tiny overlaid panels, to reveal a well-built, graceful Asian woman with long hair. She looks a bit older than Jun, but still, perhaps, a teenager, with a much more pointed face, and wider eyes.
Fermi (terrified): “Who--what--who are you?”
Jun rises, now a completely different person. We see her from the back as the light shines harshly on her and Fermi stares, curled up like a child.
Jun/July: “Who am I? Why, I suppose I'm July.”