Case20: Presage (S01E20)

In his dream, Baku, assuming the role of Village Person A, sets off on an RPG-style quest alongside Sota, Tomoko, and the heroine Nem to vanquish monsters. During their journey, Baku faces a Nightmare and changes into Zeztz, but he grows apprehensive about the Nightmare's unusual actions. At the same time, Nox comes face-to-face with Six, who has arrived with the intent to take out the traitor. He morphs into a Rider and dares her to a fight, but the outcome remains uncertain...