- Marry a wealthy husband and give birth to her long-awaited first son. Yui, who was at the height of happiness, decided to return home to show her child to her husband's parents. However, what Yui saw there was her mother-in-law, who decided the rules of the Kawagoe family. Her husband is also obedient to her mother-in-law, and her father-in-law visits Yui when Yui, who feels uncomfortable, is milking her breasts stretched out with breast milk. "We don't have any use in this house anymore," Yui, who accepted her father-in-law's breast milk massage out of loneliness.