Ayano lost her husband and is now living with her son, Yuuichi.
She kept dreaming of the life she had with her husband.

*Chapter 1 While My Son is Out...
One day, she was violated by her father-in-law who was visiting... but somehow, her instinct as a sexual woman was awakened.

*Chapter 2 With My Son
After her sexual instinct was awakened, she decided to accept her son's favor, who came to ask her for sex.
She is turning into a complete sex addict...and asking more from her own son.

[From DLsite English]