Seventy-year-old Ruan Zhuqing is a well-known "prick-headed old lady" in the eyes of her neighbors. She has a loud voice and is picky and mean. She manages her grandson Chen Lele tightly and scolds her son Chen Jianjun for his behavior of "gnawing at the old man." Even the vegetable stall owner at the entrance of the community has to avoid her "price tug-of-war." But no one knows what kind of softness is hidden under this hard shell: she was once a famous Shaoxing opera actress in the 1950s, but she gave up the stage to treat her husband's illness and raised her son alone to grow up; she was always in a daze looking at herself in costume in old photos, and she would also quietly sing a few lines of "Liang Shanbo and Zhu Yingtai" to her grandson late at night.
After an accidental fall, Ruan Zhuqing woke up in the hospital and found that he had returned to his twenty-year-old self - with braids, plump skin, and eyes that were as bright as when he was on stage. Facing the strange yet familiar self in the mirror, she panicked, but when her grandson called her "beautiful sister", she had the idea of "living again". She changed her name to "Ruan Qing", concealed her identity and stayed near her son's home. She accidentally worked as a teaching assistant in her grandson's opera class, and she also accidentally participated in a city opera competition.
