The socially aggressive grandma Liu Xiuying (played by Yang Kun) and her socially phobic and introverted granddaughter Liu Qimeng (played by Wu Jiayi) have lived together for many years but have a gap between them. An accident caused their souls to exchange. The 60-year-old grandmother went to work for her grandson to rectify the workplace, and the granddaughter, who was born in the 2000s, retired early, experiencing a very different life. After this special experience, they gradually understood each other, and finally healed each other with love, accompanied and protected each other. It shows a warm story of healing with fireworks and tears flying together.