SM Trainer "Dark Man" Burning Revenge Since his wife with a masochistic temperament was taken down by a man and eloped, he lurked in a rented house and executed a misguided revenge on a happy married woman. - He teamed up with his brother-in-law who runs a real estate agent and made a young couple live at a bargain price at home and trained secretly to her husband. - A "dark man" who awakens 15 married women to a masochist. - What is his new prey?