Metis is a mysterious character introduced in the epilogue of Persona 3 FES, known as The Answer. She is an Anti-Shadow Suppression Weapon, similar to the character Aigis, and claims to be Aigis's sister. Metis is fiercely protective of Aigis and joins the main characters on their journey through the Abyss of Time. Her presence is crucial in helping the group confront the various challenges they face, and she plays a key role in uncovering the truth behind the events following the main story of Persona 3.