Mokingbird's Song
The vampires determine that the Ark of Sirius isn't in Tokyo, but they still have one task left in the city. Willard learns something urgent at the bar.
Aired 16/08/2018EP 6 - Mokingbird's Song

Sirius the Jaeger
Imperial Capital, 1930.
A strange group of people carrying musical instrument cases landed on Tokyo station.
They are called the “Jaegers”, who came to hunt vampires.
Amongst them, there stood a young man with striking serenity and unusual aura.
His name is Yuliy, a werewolf whose home village was destroyed by vampires.
Yuliy and the Jaegers engage in deadly battle over a mysterious holy arc only known as “The Arc of Sirius”.
What truth awaits them at the end…?
With eternal affinity and spiral of conspiracy entwine, the highly anticipated action-thriller anime begins!
(Source: Official Website)