Aka Akatoretachi no Monogatari
Red Blood Red Legacy·あかあかとしたちのものがたり
Two brothers, raised in a remote mountain village, venture out to track a wolf responsible for attacking their livestock. As one brother prepares to strike the final blow, a massive creature suddenly emerges, seizing the wolf and draining its life. This creature is a large vampire deer that locks eyes with the brother. The brothers must now find a way to survive and make it back to their village.