NSFS-397 Mature Mother 34 ~ Immoral sex between mother and son near father ~ Rieko Hiraoka. Her husband, who became disabled in an accident, is getting more and more irritated. She constantly clashes with her son-in-law, Yota. One day, her husband disposes of Yota’s precious guitar, and Rieko explodes in anger. Rieko has no choice but to comfort the raging Yota with her own body.