In 1955, Professor Yvonne Rong passes away unexpectedly, only to wake up 70 years later in the body of an 18-year-old high school girl with the exact same name. Her son is now a 70-year-old company chairman, and she has several handsome great-grandsons. As she adapts to her new life, Yvonne uses her wisdom and ability to discipline her unruly, disrespectful descendants, while also finding her own happiness in this new era.