Sakurama Kojiro is The surgeon who inspired to become “Trainer” after saw one video on the internet. As the result he secretly recording and uploading his sexual play with his busty wife, Sakurama Yuko, on internet to making money.
Yuko whose originally “regular” person become nymphomania due keep doing any kind sexual play with her husband regularly. but her husband desire doesn’t stop just that. Kojiro secretly want to make his wife as the “Best” Slave ever like the one whose he saw on underground video on the internet years ago.
Would his relationship with Yuko last long Or it changed for the worse……… !?