>>2481628>Doesn't cater to non Japanese.Ain't she trying to learn English with Noel so that she can talk to the "Overseas Bros"?
To answer the actual question, I think it's not a matter of doing anything wrong, and more that she has yet to find the explosive niche that drags her numbers up. She's essentially a side character with a dedicated, small fanbase. Then again, it's not like she isn't part of Noel's sphere of influence to begin with.