I think anyone would enjoy this manga, but I feel like its moral is especially important for young women to hear and for that reason I think its demographic would be women aged 13 - 25.
I feel like this was a manga full of good ideas, but was a little half-baked. Essentially, it feels like a solid first draft for a would-be great manga. The plot points are all there, it's just its execution that leaves something to be desired.
The art wasn't the best. The art on the cover is amazing, but that doesn't match the art on the inside, which comes off as a little crude dilettante. It reminds me of the art used in comic books meant for very young girls. Although, the art is also encouraging in the sense that it inspiring to know that if this artwork could be published then perhaps so could one's own. Albeit, it was refreshing to see a different art style in manga, even if it wasn't my favourite.
One of my biggest issues with the manga is that it explains plot points instead of just showing them, which nerfs the impact. For example, instead of showing a person getting shot in the head - which would be such an interesting plot twist - the narrator writes in a paragraph that a character was shot in the head, thus weakening the impact of the surprise.
