The story is one of two continuations of parallel stories that occur at about a year after a good final history of Arcueid original game Type-Moon Tsukihime. A year has passed since the "case on the serial murder of vampires" was revealed with both deaths. de Nero (NRVNQSR) Chaos and ROA / Siki Tone. But now rumors about serial murder occur again, and Siki tone again patrols the city to find this ghostly killer. While the patrol meets and fights with a mysterious woman named Sion Eltnam Atlasia, a member of the Alchemist Atlas Church group, which is looking for to cure vampirism. But for this she needs data from Arcueid, the last true ancestor to help it in its research. But it will be not easy, as Ciel also patrols the city in search of a killer of rumors.