Inspired by comments from 10 Most Rewatchable Shonen Anime Series, Ranked
Here are a few examples that I know of:
| title | expected | actual |
|---|---|---|
| Frieren | non-shounen (seinen?) | shounen |
| Attack on Titan | seinen | shounen |
| The Apothecary Diaries | shoujo | seinen |
| Umamusume: Cinderella Gray | shounen | seinen |
| 100 Girlfriends | shounen | seinen |
What are other instances of misidentified demographic you have seen?
Quick and dirty definitions of anime demographics:
- shoujo - girls
- shounen - boys
- josei - ladies
- seinen - men


New Mobile Report Gundam Wing
The series had more focus on the Drama as opposed to mecha and as a result a slightly cheaper budget (thus the reason the vast majority of mecha scenes are used over and over again) also the fact the teens CONSTANTLY try to blow up their own Gundams. As a result in Japan it was fairly popular with Women. Regardless it was still very popular overall in Japan to the point the studio asked the staff to make a sequel but the creators really had no intention. That being said the one show runner didn’t like how the series ended and thus we got Endless Waltz which also leaned into the popularity of the series with females which is why you get some of the Gundam redesigns.
Of course in the West the show was wildly popular and was the first real introduction of Gundam to a western audience. The show also kicked off the popularity of Gunpla in the west.
Just FYI, that’s almost every Gundam series.