The leader of the organization Octobrist and was a famous Japanese specialist now a Drifter
Abe no Seimei was an onmyoi specialist born in February 21 in 921 and died on October 31 in 1005. He was brought by Murasaki to fight the Offscuorings led by the Black king. His helpers were olimine and ham they help him track down other Drifters to battle against the Offscourings.
A short OVA that featured in the final Volume of the Hellsing OVA series and promos the Drifters Hirano's latest work.