Reo is, despite first glance, the everyman of the group. She's a Raechne from planet Maenais, and is a technological prodigy. She is not, however, suited to a life of adventure, and is the voice of sanity, rational fear, and weakness in the group.

She's still integrating into human culture, and in the Dream World, she's estranged from her cultural backround with no memory of it; but she feels that loss. Raechne society is highly Collectivistic, making her lack of friends in this world incredibly devastating.

With her lack of emotional resonance to mythological beings of mankind, her subconscious minds popular culture she's been exposed to, making her persona Mothra of the Hanged Man. She's not a combat-type Persona, but an ESP-type. She'll do everything to support her true companions, however. She'll leave the fighting to them, but she'll keep them safe.