Loopy Loops
9.

In the end, every Sayo that Mirei Mikagura creates becomes the next Mirei Mikagura and creates a new Sayo to lead through CITY. They cycle through like a game on loop and arrive back at the interim or the between worlds or whatever the barely existing space should be called, and with each one, the collective Mirei Mikagura gets more and more and more vexed with it all until something gives.

Naturally, by then, she's almost given up on anything giving. But it's a happy surprise to discover a nice little hole in between dimensions so she can step right out.

Though when she lands in a lab with a red-haired boy gaping at her, she wants to scream.