Having followed this game since its inception, I find it difficult to understand why it generates so little interest, despite its quality and level being far superior to many similar games.
However, I can say that I learn about many of these games through jams. Small game festivals on Steam are also very helpful—I regularly add to my wish list there. I recommend you participating in them—they're organized by popular developers, and through their newsletters, they attract their players to new developers. These festivals feature relatively few games, and players can discover and review them all. It's a convenient system for everyone! Furthermore, new games can often be purchased in bundles with games from established developers. But this is a matter of interaction, as far as I understand.
We learn about many of these games from bloggers like Blerdy Otome—she covers not only otome games but also BL and other interesting titles. I don't know how developers find their way onto her platform, but I don't think it's a problem.
Your game is simply excellent and keeps getting better; it just needs a push to bring it to the public. I couldn't write right after its Steam release, but I'm so happy for you that you had the perseverance, patience, and inspiration to bring it to this point. I must admit, I haven't bought it yet, as it's only available on Steam in my country, and I'll lose about 10 percent on the currency difference. I already splurged on the winter sale. But I definitely want to play this game by fall, so it's just a matter of time)) Please don't give up!