Her grandfather was a politician, and her father was a real estate owner. An arrogant young lady, Ninomiya Sayuri had both power and wealth during the bubble period. However, it all came down together with the collapse of the bubble. Eventually, she became a middle-aged homeless person. One day, a delinquent threw a rock aimed at her. Just when Sayuri thought she had died while clinging to her past happiness, she somehow time leaped to her high school days. She comes up with a ‘Silver Plan’ to save her family from the tragic future that awaits them.