Streaming: Crunchyroll
Episodes: 12
Source: Light Novel
Episode Summary: Will only has vague memories of his former life; the bits and pieces that he can recall speak to an aimlessness that he once believed would doom him to hell. When he awakens in a temple as a baby, surrounded by three undead figures, he believes that this has come to pass. However, Mary, Blood, and Gus are actually kind and mostly harmless, choosing to raise Will together.
As Will grows, he learns fighting and hunting from Blood, magic (for which he seems to have a particular aptitude) from Gus, and many of life’s smallest (but often most important) lessons from Mary. But each of these individuals seems to carry a hidden sadness that Will is only able to perceive on the most basic level, and they’re reticent to share any details of what is likely a very painful secret with Will, beyond that they made a deal with the god of the undead to remain on earth after death. As he gets older his curiosity starts to get the best of him; when he follows Mary to one of her daily prayers, Will comes away with dire injuries. But through the experience he learns of Mary’s persistence and piety and he grows closer to her.