The year is 1916. Saya and Hagi are entrusted with their first mission in Russia at the turn of the 20th century. The grand battle between Men and Chiropterans ensues in the Romanov Imperial court on the night before the Revolution!
One of the 3 official manga's for the Blood+ series, the story depicts of Saya and Hagi's journey in Russia in the early 1900s in their quest to find and kill Diva.