Best way to fix that is to join in and post something!
Otome isn’t my personal interest (my sexuality goes the other way), so I don’t have much to say myself, but I’ve seen Elevator7009 trying to build a community first on kbin.social (before that site died) and then on kbin.run (before it died) and now there and I’d like to see her efforts succeed.
If you’re not interested, feel free to ignore it, but if you’d like a place on Lemmy for discussion, there are at least a few people there who’ve been trying their damnedest to get something going.
This post made it over to reddthat, so your posts are federating out.
Checking over on my kbin account as well, I can see content in /newest from multiple sources. /sub returns 404 but I think that’s just a caching bug (adding ?p=1 to the end of the URL lets me workaround it).