Zen is a major supporting character in Persona Q: Shadow of the Labyrinth. He is a mysterious, emotionless boy who appears in the Velvet Room area of the game and initially seems detached from ordinary human behavior. Zen serves as one of the two central figures tied to the game’s strange labyrinth, alongside Rei. His role is to guide and observe the Persona users as they navigate the dungeon, while his own hidden connection to the labyrinth and the story’s deeper mystery gradually becomes important to the plot.