A lustful mother seduces her son - an obscene unraveling given to her virgin child who has awakened to sexuality

Yui is a mother who lives with her only son, Takahide, looking forward to her husband who is on a business trip. My uneasy life, which has been separated from my husband for over three months, has not subsided, and my body naturally plays with my crotch... He invited his son's friend Tomoma, and instilled in someone he liked, venting his sexual desires that had accumulated, but he was unable to satisfy him simply by greeting his carnal desires. One day, Yui witnesses Takahide's dick, and is unable to hide her excitement at the one that has grown up so well...