The 5-year-old girl Qin Xinnuan was supposed to be sent to kindergarten by her father Qin Lugang. Unexpectedly, Qin Lugang received a phone call on the way and dropped her 500 meters away from Xingfu Kindergarten. Qin Xinnuan suffered from congenital heart disease. She was afraid of stimulation, which caused acute heart failure. She was almost hit by intern doctor Long Xing. Long Xing examined Qin Xinnuan and rushed him to Nancheng Hospital for rescue, and asked the nurse to contact the parents of the child. When Qin Lugang showed up at Nancheng Hospital, he accompanied his mistress Hu Weixia to treat the illegitimate son Qin Langlang under the expert number of Director Liu.