A tied up widow - a beautiful sad wife who has fallen into bondage training - 4 of them 4 hours

A widow trained with hemp rope and obeys her. She's truly a lewd woman... [Episode 1] Satoda, who has a sadistic tendency, takes advantage of Kazuyo's weakness and puts her into her hands as a sex slave [Episode 2] After the funeral, the undertaker who had always loved Nachi for a while has committed Nachi [Episode 3] Chisato offers to not let her son go on to the doctoral program, but the professor is lewd. [Episode 4] The father-in-law furthers her desire to pay off the debts she had lent to her son. Using this as an excuse, I will rape my wife and train her.