The story takes place in a remote countryside, a woman named Kyoko Nakajima and her husband moved here from a crowded urban area because the company requested a job transfer. She quickly became acquainted with a nearby neighbor named Yamata because she had the mindset of having wide acquaintances to easily live and work.
Because the man near the house was a moving employee, they had time to spend together and talk a lot. Nakajima proactively contacted Yamata to help him move his belongings. Both people have liked each other for a long time without realizing it. They did not approach the affair slowly but very hastily, probably because they were afraid that someone else would find out.
And the one "on top" is Nakajima, she constantly "attacks" Yamata, the lust of a married woman clearly shows on her face, especially in that mole...