Since childhood, Mayuko (pseudonym) has been obsessed with anal pleasure after secretly watching her elderly aunt defecate outdoors. Throughout elementary, middle, and high school, she repeatedly engaged in solitary anal masturbation. After graduating college, she decided to suppress her abnormal desires and chose to live as an ordinary woman by becoming a teacher. Eventually, she married and gave birth to a daughter. However, her innate anal masochistic urges proved impossible to control, and she gradually resumed secretly masturbating anally in her elementary school's restroom. One day, a parent, N, discovered her in the act and became intensely interested in her. This video realistically captures Mayuko being tormented anally in various ways by N, who possesses a sadistic personality. Please watch this footage sent from the editorial department of an SM magazine.