In 1930, Tokyo becomes a feeding ground for vampires, prompting the authorities to enlist the Jaegers—a peculiar group hired by the V Shipping Company to eradicate vampires globally. Disguised with musical instrument cases, these hunters exhibit a ruthless demeanor akin to their prey. Yuliy, a formidable Jaeger with werewolf abilities and a tragic past, collaborates with his team in Tokyo to combat the vampire menace while secretly vying for the powerful Ark of Sirius. This mystical artifact, capable of altering the world's destiny, sparks a covert battle between the Jaegers and vampires as they race to secure it for opposing purposes.