As you can read from the preview, this manga is about a boy with girlish voice who went on to sing in a band. Premise is very simple and straightforward. Now I will go into the story a bit.

- Story:
To summarize, it's a story about facing your past trauma with some band club shenanigans. Pochi the protagonist was ridiculed because of his voice and he proceeds to never speak in public since highschool, he met with Ageha who also has an issue with men, but couldn't let go of Pochi's beautiful voice for her band as a vocalist.

Now that sounds like it could be an interesting story, however the way it is executed are beyond cartoonish and borders into the ridiculous territory. Drama keeps popping up left and right when there's absolutely no reason to and there's almost no downtime at all.

Everyone that aren't immediately established to be a nice person are just straight up jerks or a-holes (some of them might get some sort of shallow redemption and realize the error of their ways).
Weirdly enough the story is almost structured in a "monster of the week" format. A drama arises and then a villain will show up for the band to defeat using Pochi's singing voice.

- Art:
There's not much to talk about on the art, it's cute and simple (might even be too simple). If you don't like it then I don't recommend reading this at all.

- Character:
Other than the two main characters, the characters are barely even fleshed out at all. Some of the "villains" might change in some unnatural way just because they heard Pochi singing (which didn't make sense because listening to a good song doesn't suddenly turn jerks into saints).

A strange and noticeable trait in most of the background characters are as I previously mentioned, if they're not a good person then they're straight up a piece of human garbage, there's no middle ground. Hoo boy you can bet that almost every guy that isn't Pochi are either, A. sexual predator, B. a massive idiot, or C. doesn't talk whatsoever.
This can get really annoying when you keep seeing the same kind of people everywhere and almost no variety.

- Summary
Overall it's a pretty painful read and I only give it extra point for the unique premise, but then again you could just read iDOLM@STER Neue Green if you're only here for the "a guy in drag is singing on the stage" thing.