Munehisa Iwai is the owner of the airsoft shop, "Untouchable" in Shibuya. When the protagonist asks him about the "real" firearms, Iwai shows interest in his motive, says he dislikes the police and offers to supply the real stuff in exchange for the protagonist assisting him in shady activities. He is responsible for the selling of weaponry used by the party, the pawning of items found in Palaces, and when the Phantom Thieves steal a treasure, they pawn the treasure off to him. Building up a Confidant with him makes him offer a discount for the protagonist.