In 1930, at Imperial Capital, a peculiar group of people arrived at Tokyo station, carrying cases for musical instruments. These individuals were known as "Jaegers" and their purpose was to hunt vampires. Among them stood a young man named Yuliy, a werewolf who had lost his home village to the vicious creatures. Yuliy emanated an unusual aura and possessed a remarkable sense of calmness. The Jaegers and Yuliy clashed in a deadly battle to obtain the mysterious and sacred artifact known as "The Arc of Sirius." As they try to uncover the truth, they are forced to contend with an endless web of conspiracy and everlasting connections. This thrilling action-packed anime promises to keep you on the edge of your seat.