Kohki visited her husband's family home to greet them about their marriage, but it turned out that her father-in-law, Tadashi, was her former teacher. Surprise and relief brought the two closer instantly, and a harmonious cohabitation of two generations began... However, her hardworking husband loved Kohki but never engaged in intimate acts with her, leading to nights where she comforted herself alone. Tadashi himself had an excess of sexual desire that he couldn't satisfy, and noticing this, he convinced himself that he was doing it to fulfill Kohki's desires as he approached her...
