Toshimi has raised her son Shinji on her own after parting with her husband. She was a mother and child who lived harmoniously, but Toshimi had a secret that she couldn't tell Shinji. That is, Toshimi's milk is "poor milk" and her nipples are obscenely stretched. She was afraid that Shinji wouldn't find out what was going on in her heart, but Shinji's distrust only increased as he began to recognize her mother as a woman. One day, Toshimi is questioned by Shinji and finally decides to expose her breasts.
