Chibo no maki: Kosutte, motto!

Satsuki gave birth to her son, Masaharu, out of wedlock at the age of eighteen; she subsequently obtained a qualification as a kimono dresser and raised him entirely on her own. Although Masaharu had graduated from university and entered the workforce, he remained emotionally dependent on his mother—unable to truly "wean" himself from her—and harbored lewd fantasies about her...