There is a bit of vampire themed dramas, but I guess its not the majority theme in supernatural/fantasy kdrama. i think the reason behind that, is because Vampire is a western origin lore. koreans or asia has their own lore than vampire or zombies, and that is mainly the gumiho or kitsune or the nine tailed fox. plus Kdrama has that thing of trending type themes in a year. and this year and also last year, are mostly about parallel worlds or supernatural/fantasy/scifi worlds that exist with the real world...
but if you are looking for vampire themed romance kdrama, here are some that I know of:
- scholar who walks at night
- orange marmalade
- love in Time
- non romance
