The plot takes place prior to the "Battle in Nagoya" saga of the primary tale. Guren assigns the Shinoa Squad another task - to free Riko, a human girl, from the clutches of a perplexing vampire named Shahar, and reunite her with her relatives. Nonetheless, Ferid and Crowley show up as they trace Shahar. Is Yuuichirou capable of rescuing the girl?