Heisei Customs History: You Were Erotic at That Time Too

平成風俗史 あの時もキミはエロかった

Also known as Heisei fuzoku-shi: Ano toki mo kimi wa ero katta, 平成風俗史　しろうとばやり, 平成風俗史, 隣人の喘ぎ声 人妻とolに挟まれて

The Showa period was ending and the era was about to change to the Heisei period. Newlyweds Chikage and Ryuhei argued over trivial matters, but at night they made up for it with sex.