JUX-381 My son brought his forty-something girlfriend... Yuu Misaki.

Ten years had passed since I lost my beloved wife, when one day, my son suddenly brought home a woman named Misaki. It was the first time since high school that he'd brought a girlfriend to our house, so as parents we should have been happy... but Misaki was at least one, no, two generations older than my son, and I couldn't hide my bewilderment. Moreover, for some reason, she ended up living with us for a while, taking care of me like a wife would, and before I knew it, I found myself watching her every move...