Brilliant. Very intriguing drama, but some violence~~ primitive period. You get enough hints to relate it to scientific developments of advanced civilisations without losing the period atmosphere. Sort of historical X files. Oh, and the romance is slight, with a nice twist at the end, assuming I am right in how I interpret it. Would a woman be in that position in Joseon period, though? Ah, but there's the twist at the end again that explains it. I do not know much about Korean history but as the Joseon dynasty lasted 500 years, which period is this? Never dull, plenty of different story-lines and characters you can identify with. The stories are only around 40/45 minutes but seem to pack in more than hour long shows with slow patches. For anyone who likes a mix of drama, sci-fi, supernatural, mystery in historical setting this is highly recommended. Even if you do not like historical, still worth watching, it converted me to looking at historical shows.