NACR-734 小田真子，一位变态的大胸人妻，为了取悦丈夫，偷偷拍摄自己与他人发生性关系的视频。.

I ended up staying with my brother and his wife for a while for a job interview. One day, my brother’s wife, Mako, entrusted me with the key to her study, asking me to take a look at her brother’s collection. On the computer in the study were hidden camera footage of Mako masturbating and having an affair. When Mako is questioned, she discovers that the camera was set up by Mako herself.