Roxy is in a pinch.
After hearing that, even now the impulse of wanting to jump into the labyrinth is spurring me on.
The location is the S-ranked Teleport Labyrinth, but luckily I had obtained a book describing a past exploration attempt.
I had already investigated things in regards to teleport magic circles as well.
If you have the time to observe each magic circle, then I'm sure just as written in the book you can conquer the labyrinth.