"Finally, this day has come..." Juri, who is now over 50, has reached menopause. Juri is overcome with emotion as she throws away her sanitary products in the trash. However, at the same time, she is Kokoro to be free from bothersome period pains, and most importantly, to be able to have sex whenever she wants. Unaware of his mother's feelings, her son Junya is unable to ask his mother why the sanitary products have disappeared from the house. One day, Junya decides to ask his mother if she is really experiencing menopause, but...