>>2932871She's decently popular in Japan, at least. Enough to get 10-20 new pictures per day on Pixiv. So I'm happy with that, even if most of the pictures aren't up to my standards.
Also, while misunderstanding your comment, I looked up to see how many SSRs she has compared to others and Koume has six whole SSRs. Takagaki Kaede has five and Shibuya Rin has four in comparison. Pretty strange to me, mostly because she doesn't top the popularity charts like the main girls do.
