The secret pleasure of anal fisting that cannot be told to their husbands... A clandestine video collection of masochistic wives who came to the editorial office on their own, begging to have their anuses stretched. Witness these married women lose themselves in adulterous ecstasy as their bodies are pushed to the limit—experiencing the pleasure of having fists inserted into their anuses, stimulation from ultra-thick vibrators, penetration with glass bottles, dilation with speculums, simultaneous double penetration of both orifices, enemas, whipping, suspension play, and electric torment. In Part 1, meet Mei, a married female teacher who had long repressed her abnormal desires—until she finally set them free.