Tadokoro was due for a midlife crisis.
He loathed sameness of his factory job and lifestyle.
Then a new family moved into the house next door.
There were two daughters, school-aged girls
who were cordial and sweet.

Saaya and Asami Takatsuki.

Tadokoro's 40-year-old libido was aroused by their nubile allure.
He plotted how to cross the taboo line.

Saaya would be first.

[From DLsite English]