HZGD-112 Wife Yu Kawakami raped in front of son

Yuu is a mother-in-law who cannot overcome the delicate distance between her husband's stepchild and her remarried husband. - One day, an evil-looking man suddenly barges in and tells her that his son ran over an old woman on his bicycle. - She was asked for a large sum of money and told to pay for the missing amount with her body, and from that day on, she began to be raped almost every day... - What did the son do when he saw this?