Teacher Mayuko (pseudonym) harbors a strong fascination for anal pleasure and is undergoing training as an anal masochist under N, a student's parent, experiencing new realms of sensation. The pleasure she seeks goes beyond mere sexual stimulation, creating deep emotional bonds and feelings of dependency. Understanding her desires, N continuously explores ways to draw her further into this world. Her expressions and reactions reveal an entry point into a reality far removed from her everyday life. Like a dream, within this relationship, she finds an opportunity to rediscover herself.