Metabon is a small, strange creature affiliated with the Academy, an organization that identifies and nurtures individuals known as Compatible Ones. Its exact origins are unknown, but it serves as a mascot-like figure within the group. Metabon is often seen clinging to the main characters Akane, Midori, and Aoto, acting as a self-appointed teacher and commentator on the events around it. Its personality is marked by a cheeky and quibbling nature; it does not hesitate to speak its mind, often engaging in playful banter or offering sarcastic remarks. Despite its mischievous demeanor, it is generally helpful, sharing its knowledge about the world, the Divine Gate, and the people involved in its pursuit. Its motivations are not deeply explored, but it appears genuinely invested in the progress and safety of its companions. Metabon’s role in the story is that of a supporting and informative presence, offering guidance and comic relief while observing the journey toward the Divine Gate. Its key relationships are with the core trio, particularly Akane, whom it follows most closely. The creature does not undergo significant personal development over the course of the narrative, remaining consistently cheeky and loyal. Metabon has no known combat abilities and is not depicted as a fighter; its notable skill is its cheekiness, which it employs to interact with others and diffuse tension. Its appearance includes wings, a top hat, and a tie, reinforcing its unique and whimsical character design. Its favorite food is a dried wheat gluten snack, and it has no disliked foods.