Although Sirius the Jaeger make it pretty clear that it is a original work from P.A.Works studio from the opening there is nothing remotely resembling a new idea for the vampire genre that hasn't been done countless time before so it real easy to see anime fan skip this one after 3 episodes rule but aside from the unoriginal plot and all the clichés from the characters it still a fun series with some of the best action direction I see this year and the stunning visual look of the world.
Review of Sirius the Jaeger
