I've spent more time than I care to admit in that particular tag, and there's definitely a pattern to what people write. A huge chunk of it revolves around the reader being a human who gets dragged into demon-hunting chaos, often as a bystander who needs saving or, more interestingly, as a fledgling hunter themselves. That initial dynamic where you're scared but stubborn, and Dante is this weird mix of dismissive and oddly protective, is like catnip for writers.
The 'found family' trope at the Devil May Cry shop is another major one. It’s not just about romance; it’s about the reader becoming part of the weird, dusty, pizza-box-filled ecosystem. Scenarios where you’re the new part-time receptionist trying to get him to actually answer the phone, or a magic-user he hires for a specific job who ends up sticking around, let the relationship build through shared banter and minor missions before anything big happens. The slow integration into his world feels more earned than insta-love.
There's also a surprising amount of hurt/comfort fics, often with a supernatural twist. The reader gets injured by a demon, or has a cursed artifact attached to them, and Dante has to deal with it—which forces him to drop the cocky facade and show a sliver of genuine concern. Those moments where he’s patching someone up in the back of the shop, grumbling about it but being careful, are a staple. It plays directly into the fantasy of seeing the vulnerability beneath the swagger.
A less common but really fun niche is the role-reversal or power-dynamic flip. What if the reader is the ancient demon or half-demon, and Dante is initially suspicious or even hunting them? The tension from that mistaken identity, leading to an alliance, offers a different kind of spark. It lets the reader character hold their own in a fight, which changes the dynamic from protector/protected to something more like rivals-to-lovers, with a lot of competitive energy and spectacularly destroyed property.