Plum Shuttery is a male Varcolaci originating from Romania, a shapeshifting creature linked to vampire mythology. He serves as a familiar bound to Lilith Kishimoto, accompanying her from Romania to Japan. His primary role demands unwavering loyalty to Lilith, acting to protect her interests and eliminate threats to her objectives. He initially appears in a non-human, animal-like form resembling a small wolf or dog. Later, he assumes a humanoid form distinguished by violet or blue hair and golden eyes. This transformation shifts his demeanor from comical to intimidating, marked by sharp, often shameless speech patterns, particularly directed at female characters. Plum possesses supernatural capabilities, including manipulating human thoughts through direct eye contact and inducing physical or physiological changes in others, demonstrated by a non-consensual kiss aimed at altering Chizuru Makimura's condition. His actions frequently target Chizuru Makimura, whom he perceives as a disruptive force interfering with Lilith's goals. He prefers indirect methods over lethal force to neutralize her, leveraging his abilities to manipulate situations and people to achieve his ends.