This UPC is for all 24 episodes of Kurokami: The Animation. (thetvdb only shows 23 episodes)
When I try to add it myself, Core is looking for Part 1, Part 2, etc, but it is missing part 4 and 5 in the search. It would be parts 1-6 if we did it that way.
Updated in CORE.
Thank you for letting us know.