>>280557083it's not quite like that...
from Staff Interview #3 – Ichiro Ohkouchi
(You can read the entire interview on Zeonic)
――Had the school setting been decided upon at that point?
>No, there were no school elements when I first heard about the project. In fact, the first worldview that Director Kobayashi and I began creating was entirely different from what it is now, a harder worldview more characteristic of Gundam.―――What kind of character was Miorine at that time? (It's also confirmed that Miorine was not initially a thing)
>After turning it into a school story, the current narrative didn’t come together smoothly from the start, and several versions were drafted. In the first script, Miorine didn’t exist, or more accurately, she didn’t have the role she has now. A character named Miorine existed, but she was positioned as the mistress of the villain. However, we realized that dividing the story between the company scenes and the school scenes would create a disconnect. I reconsidered and thought it would be better to place Miorine in the school. After several revisions, she became the Miorine we see today. Her personality is also completely different. Initially, she was a pitiful character who had nothing and couldn’t speak her mind to others.The prologue was created by another group who worked independently on the submitted script. The funny thing is that the other group was stuck with the old concept and hadn't realized that the show would be much lighter.