Mahou Shoujo Ikusei Keikaku (AP? BE)

[The AP Ninja]

First things first: this anime is all about normal girl/women ageing and de-aging into magical girls. However, the only transformation that was not a cheesy poof is precisely the only one without any age changes.

But today, I was proved wrong in episode 11. There, we can actually see the second transformation sequence of the entire series, and one where there is actual body-shift.

https://my.mixtape.moe/rryxhm.webm

Given the phisiology of the original girl, I would say this is a slight age progression if not a general body improvement. And yes, I am aware of the "budget" they used for the TF. But given how little content we had over this whole season...it's better than nothing.

There is a nother character with a less ambigous transformation Swim-Swim.
https://myanimelist.net/images/characters/3/309061.jpg
There is a brief wake-up sequence featured in this same episode, where we can see a clear before/after with an attempted yet cheesy process.

This opens as well the posibility for an improvement in the animation in a VERY hypothetic blu-ray release, and squeezing and overthinking things a bit, the inclusion for some more TF sequence of the girls remaining the most popular among japanese surveys. But those are just matpad levels of speculation. Time will tell...