Ave Mujica's "creator" may actually be Mutsumi (when she was a child)

Everyone assumes Ave Mujica is created by Sakiko, but what if this is not the case?

In epsiode 3, this scene is showing the inner world of Wakaba Mutsumi.

https://preview.redd.it/rp1wf5t6obfe1.jpg?width=1920&format=pjpg&auto=webp&s=66dae1f7a4fb55439724e5875637301011597251

https://preview.redd.it/4neef6t6obfe1.jpg?width=1920&format=pjpg&auto=webp&s=d1b7a3d516ebc54f3a1c038cee9664236689aa12

As we can see from the background after tuning brightness, there is a merry-go-round and a ferris wheel in the background, which is very similar to what we saw in the OP.

https://preview.redd.it/rbh6st1wobfe1.jpg?width=1920&format=pjpg&auto=webp&s=d41b119e2c72c76c813a5f5fa2530732b2ee1fe0

https://preview.redd.it/xty9zs1wobfe1.jpg?width=1920&format=pjpg&auto=webp&s=cd9f98e8f7a51cea4e22690f2712cce929225c93

I think most of us agree that OP is Ave Mujica's world.

Also, Mortis at the end of episode 3 shows how well she knows the world of "Ave Mujica", she can even create all her script instantly. (Yes of course Mortis knows Ave Mujica well because she is Mortis.)

https://preview.redd.it/91asw22jqbfe1.png?width=1920&format=png&auto=webp&s=8d51ff5a0995ee1716cf4e60c1fc50cb57cc8e9f

So is there a chance that the actual creator of Ave Mujica is Wagaba Mutsumi, but not Sakiko?

Inside Mutsumi's inner world, Wagaba Mutsumi is also the one who writes the story "Mutsumi-chan", does this makes "Mutsumi-chan" a character acted by Wagaba Mutsumi instead of an independent personality?

https://preview.redd.it/4xdp0a0uqbfe1.png?width=1920&format=png&auto=webp&s=9b148648860c6db0f5c68f5c9b0ca460d8f6cd6c

According to Sakiko, Mutsumi used to talk and smile more, which is surely not Mutsumi-chan nor Mortis (who Sakiko is afraid of).

https://preview.redd.it/az66xg8mrbfe1.png?width=1920&format=png&auto=webp&s=cceb56f46e78f1aeee4907a1ebf0d41c9204291f

"Wakaba Mutsumi is a script writer as well as an actress who used to talk and smile more. She might be the actual creator of Ave Mujica"

Does it explain why Sakiko cares Ave Mujica's world this much?

What is Sakiko trying to do with Ave Mujica if this is the case?

That's insane to think.