SPRD-1422 Yumiko Sakura is the mother-in-law who satisfies more than his wife

Yumiko Sakura plays the mother-in-law in a household where the son-in-law's wife is cold and dismissive. After his wife refuses sex, he wanders into the bathroom and finds his mother-in-law masturbating. He enters, they embrace, and she touches his erection, leading to an affair that continues the next day when he leaves work early to see her again.