Based on ~20+ chapters.
First chapter was wonky and the big chested female characters made me feel suspicious about the overall quality and possible tropes done badly. But it's actually very well written in terms of character progression, gender identity and idol training is taken seriously.
Very, very (!) good writing so far, something to read more than once time. Hopefully it will be this way for the whole story.
The plot is interesting, the MC learns a lot of skills. Reminds me of Skip Beat and other acting mangas where they delved into the intricacies of the industry and acting itself.
So far it's similar to sports manga, in terms that female only interactions, no romance and overcoming obstacles to become the best in the team.
I'm pleasantly surprised, because the art itself, despite being obviously nice, hinted on a more generic romcom or something. This instead a classic shounen type of development, when character makes friends from enemies and gets good together at a skill they all love.
Another point, it can be relatable to people with body dysmorphia, dissociation/depersonalization and other issues when you have disconnect with your inner world and how people see you. There have been some interesting advice to the character that could be possible to apply to people who have similar feelings around their body/identity.