If you're asking about 'Kamisama Kiss' season 3—there's no official episode count because there hasn't been an official announcement. I know that feels like a frustratingly vague reply, but I like to be honest: the anime community has been hopeful for years, and rumors pop up every few months, but nothing concrete has been released by the studio or the creator. For context, the anime so far adapted a big chunk of the manga: season 1 ran for 13 episodes, season 2 covered more ground across 12 episodes, and there were also a handful of OVAs/specials that filled in side stories and some bits the TV series skipped. So if a third season ever does happen, the safest guess—based on how similar single-cour sequels are handled—would be something in the 12–13 episode range unless the studio opts for a multi-cour comeback.
As someone who’s been following 'Kamisama Kiss' since it first aired, I like to look at the practical stuff behind these production decisions. Studios often consider how much source material is left, whether the manga ending provides a neat adaptation point, and whether there’s strong enough demand to justify the budget. The manga wrapped up its major arcs, so there’s technically material that could fill another season or two, depending on pacing. If they wanted to finish the remaining character arcs and the main relationship beats without rushing, 24 episodes split across two cours would be ideal, but that’s less common unless the project has a big promotional push. Realistically, if a studio greenlights only one more cour, they’d likely aim for 12–13 episodes that focus tightly on the most crucial arcs and leave out some side detours.
On a more personal note, I find it fun to imagine how a season 3 would be structured. I picture the first few episodes wrapping up the emotional mid-point stuff and the last handful handling the high-stakes resolutions and quieter romantic moments—those scenes that made me tear up reading the manga. If you’re itching for more right now, I’d recommend revisiting those OVAs and the manga chapters that weren’t animated; they give a lot of the closure a season might cover. Also, keep an eye on official channels: studios occasionally drop surprise announcements at conventions or during seasonal lineups. I’ll be waiting with everyone else, fingers crossed that we get either a proper season 3 or a movie that gives the story the runtime it deserves.