Real name: Unknown
Apparent/Mental age: About 7–10 years old

Actual age: ??? (Unknown)
Gender: Male
Height: 143 cm
Weight: 31.5 kg
Race: Vampire-type
Possessions: Cross necklace / Hourglass
Abilities: General magic / Perfect memory

First/Second/Third person: I (boku) / You / You all
Tone of speech: Young childlike
Likes, hobbies: Cat’s cradle, walking, picture books, human blood, etc.
(Finds essential nutrients for producing blood, such as red blood cells, delicious)
Dislikes: Humans, immortality, horror, garlic, daytime activity
Special skills: All magic-related fields (unconscious), magic power control
Weak at: Holding back
Worry: “That everyone disappears so quickly”