After the events of Fushigi Yuugi, Miaka and Tamahome are happily living on Earth. But upon visiting the Byakko and Genbu priestesses' graves, Tamahome magically vanishes without a trace, leaving a distraught Miaka behind. Someone from their past, it seems, is convinced that Tamahome is not who he appears to be, and is willing to do anything to prove it. Against all odds, can the two be reunited, or are they doomed to stay apart forever?
Momiji, Kusanagi and the rest of their friends have managed to save the world and the Aragami are gone forever -- or are they? In San Francisco, Aragami have begun to appear for mysterious reasons, and it's up to the gang to investigate. Luckily, they aren't alone; a young woman named Valencia -- who is the same human/Aragami hybrid as Kusanagi -- shows up to render her assistance and possibly steal Kusanagi's heart! With jealousy rising and monsters galore, can Momiji pull it together long enough to destroy the Aragami once more?