Beautiful mature woman SM ~Widow trained by her father-in-law~

It has been 10 months since my husband passed away. Aika, who lived with her husband's father, Kazuyuki, was planning to return to her parents' home on the first anniversary of his death. I was reluctant to leave my stepfather alone, but my mother needed to be taken care of. Kazuyuki stares at Aika... The father-in-law's regret for his son, who died without a child, and the loneliness of being alone, incline the father-in-law to a distorted love. When he ties Aika's body with a rope and takes away her freedom, he drags her into the lewd and obscene world of SM along with his feelings for her...