Sayuri Ninomiya comes from a family with political ties and a real estate mogul father. Once a conceited woman reveling in her high social status and wealth during Japan's economic boom, her world crumbled when the bubble burst, forcing her into homelessness as she grew older. In a moment of despair, a juvenile delinquent launched a rock at her head, prompting a mysterious journey back to her high school years. Armed with this newfound lease on life, Sayuri endeavors to save her kin from a harrowing fate while achieving genuine joy unencumbered by material goods. Hence, she created the "Silver Plan," encompassing finding friends, saving money, and prioritizing physical and emotional wellbeing. Sayuri commences her second chance with gusto.
