Hibiki is an undercover investigator who works in buddy with a junior investigator. They infiltrate QoS Video, an organization that produces illegal videos of women being cuckolded by black men. On the day of the mission, due to a mistake by the junior investigator, Hibiki falls into a trap set by a black member and is held captive. Hibiki continues to resist, but is impatient with the intense pleasure. For the sake of her cute junior and her mission, can she endure it...?!