Dark Man YAMIO The man who awakened 16 married women to masochist

Since being cheated on by a wife with a masochistic personality and eloped, a man who has begun to plot an unconventional "revenge" on a happy married woman...a SM trainer who is burning with revenge, commonly known as "The Dark Man." He turns his home into a rental property and lets a young couple live at a low price, and then awakens his wife's masochist and cuckold him... Yamio is a training professional who has already awakened 16 married women. What is his new prey?