I think mystery animes are the least popular. While there are several animes that are recognized such as Detective Conan, the genre has not been explored as it deserves in my opinion. I almost never find an anime of this genre and maybe it is because it's a difficult plot to handle and understand.
I would like to invite @zupasteleria 👌👀
writing a plot with mystery is already not easy so yeah, probably less fans out there. also it's like nerdy stuff so it's not for everyone.
i like mystery animes though. 😂
haha I like them too, I feel nerdy 😂 but sometimes the translations get a little complicated and it's hard to understand them, just like you said @itz.inno 😂
yes so true. it could also be that these types of animes are the hardest to translate; thus, less known to non japanese speakers.
That could be another very good reason, Japanese is difficult by itself, let's imagine with a complicated plot 😲