One day, the toilet at the Shoda household suddenly broke down and became unusable. Chisato, the mother, immediately called a repairman, but by then she was already suffering from unbearable urinary urgency. She thought she could just hold it until the repairs were finished, but the work took much longer than expected, pushing her body to its limit. Eventually, she made the bold decision to step into the backyard and lower her panties to relieve herself—only for her son to accidentally witness the entire scene. What begins as a minor household mishap escalates into an incident that shakes the family's bond, portraying a realistic, everyday story with intense emotional and physical tension.