Hibiki and Mitsuki are hostesses at a snack bar where Ayano is the manager. Even though they were soliciting customers in front of the store today, there were no customers. One day, Ayano's senior suggested, "Concept cafes are popular now," and "How about a ninja concept cafe?" Immediately, the three of them changed into kunoichi costumes with a lot of exposure and practiced, but they started to feel erotic... The practice drill developed into lesbian play.
