This work is a collection of photos and videos posted to SM magazines by TK & Nana (pseudonym). A series of photos and videos were taken and posted as part of the training. Mr. TK is a man in his early 40s who has a lot of practical experience. Nana is a 35-year-old married woman (no children). Mr. TK and Nana's husband are old friends, and Mr. TK attended their wedding. [From Sex Slave Nana] "Since I was little, I've been masturbating and obscene and masochistic fantasies. When I was a teenager, my older brother played a prank on me once, and that triggered a romantic relationship with a man. I got married as a virgin to a man who was introduced to me by a relative at the age of 24. And now... I spend my days being trained by a male friend of my husband who sees through my true nature. I was lent to a man and awakened to the joy of living as a livestock exclusively for sex processing at the lowest level.Of course, this is a secret from my husband..."