Shen Chuyi (
Rui En) is a happy-go-lucky girl who, since she was a child, has seen how much her father suffered from kidney dialysis. Thus, she cultivated the good habit of eating healthily, and often reminds people around her to maintain a healthy diet. Sadly, Chuyi is diagnosed with acute kidney disease. Chuyi's boyfriend, Ding Zhanpeng (
Allen Chen), leaves her. As Jiayi (
Esther Yang) cannot bear to see Chuyi tormented by kidney disease, she decides to donate a kidney to her. Chuyi is adamantly against the idea, not to mention that Jiayi's parents oppose the decision vehemently. Before Jiayi manages to convince her parents, she is killed in a car accident at a tender age. In accordance with the organ pledge form that she had signed before her death, Jiayi's kidney is donated to Chuyi. After being given a new lease of life, she decides to help people with kidney disease. Out of gratitude, she is determined to help Jiayi's obese sister, Jiajia (
Yahui Xu), leads a healthy life.