Mari started working as a housekeeper out of necessity. One day, her new assignment turned out to be her own sons, separated from her twenty years ago. Believing they had been abandoned, they reject her attempts to act as their mother. Therefore, Mari focuses solely on supporting their daily lives as part of her job. However, as time passes, their attitude toward her begins to change. What started as simple household assistance and brief conversations gradually deepens. Then one day, Mari physically feels their growth firsthand—and finds profound satisfaction in it as well.