SPRD-1031 My son's wife and father-in-law Miki Fukuyama

It happened half a year ago when the shogi class I had been looking forward to was suddenly canceled, and I returned home earlier than planned. I caught my son's wife, Mika, having sex with my son's friend. I regretted seeing it, but for my son's sake, I decided to confront Mika. She admitted their relationship honestly and confessed about the mismatch in her sex life with my son. So, I said that I would take care of her using an old bad habit... And so, I ended up having Mika. At first, she was confused, but Mika desired the act more than I thought. Although I felt guilty towards my son, I became engrossed in having this woman, Mika. One night, I overheard my son having sex with Mika for the first time in a while and listened to them getting aroused together. I thought my role was over...