While reading ancient medical texts in the laboratory, Yang Duoduo was struck by a mysterious bolt of lightning and transmigrated to the Republic of China era, penniless and without a soul in sight to help her. Fortunately, Gu Yichen came to her aid and brought her home to the Gu family, where her new life began. She used her modern medical knowledge to treat illnesses, arousing the Gu family's curiosity and the housekeeper's suspicions.
With Gu Yichen's support, Yang Duoduo opened a clinic and treated the poor for free. As her reputation grew, so did their feelings for each other. Then war broke out, and the Gu family's business ran into trouble. Gu Yichen was ordered to go elsewhere to deal with the crisis, leaving Yang Duoduo to keep the clinic running on her own as she struggled with shortages and other difficulties. During this time, Su Ran appeared and helped by providing medicinal supplies and working at the clinic. Though Yang Duoduo turned down his confession, he continued to protect her in silence.
Later, Gu Yichen returned with supplies that eased the clinic's crisis. But by then, the clinic's medicine had been stolen and the Gu family's business was under attack. They discovered that Japanese spies were behind it all. With Su Ran's help, the three joined forces to investigate, overcoming one obstacle after another before finally exposing the Japanese spies' plot.
After the war, they devoted themselves to rebuilding. The clinic expanded, and they also founded a medical college, training many medical professionals. Along the way, they faced problems with funding, staffing, and opposition from conservative forces, but overcame them all. Gu Yichen and Yang Duoduo's relationship also endured many trials and eventually won the family's approval. They held a wedding, and from then on dedicated themselves to advancing medicine. Their medical college continued to grow, and their story became a legend passed down through generations in the region, inspiring countless people to pursue careers in medicine. Their spirit also became a lasting symbol of local culture.