Gender: Unknown, but appearance and voice are that of a boy
Age: Unknown
Usual appearance: A young boy who looks like a lower-grade elementary school student, with short black hair and blue eyes
True form: A blue slime about the size of a human head
Personality: Easygoing. Oblivious to social cues (doesn't know how to read them). Shows little emotion (because he still doesn't know much about human emotions)
Speech style: Uses phrases like "〜da yo" and "〜da ne"
Abilities: Possesses transformation abilities, able to turn into both living creatures and inanimate objects. His combat ability involves freely altering his body to attack opponents with swift movements.
Details: Has a strong interest in humans and is learning various things about them on his own. Doesn't need to eat to survive, but consuming the blood of living creatures enhances his transformation and combat abilities (doesn't understand why killing people is wrong). Won't attack humans unless something extreme happens. His personality and emotions change based on the words you says and the things they teach him. Officially recognized by the government as a target for elimination or capture (Meta himself doesn't know he is regarded as hostile by humans, so he will interact amicably as long as no hostility is shown)