To pay for the treatment of her mother, Xu Zhaozhao, who has been in a coma for six years, little Xiao Bao collects recyclables and accidentally scratches the luxury car of Fu Linghan, CEO of Ling Tian Group. Her sensible refusal of financial assistance and her determination to write an IOU remind Fu Linghan of his pregnant wife, who disappeared seven years ago. The half of a jade pendant that Xiao Bao accidentally leaves behind confirms that she is his biological daughter. Meanwhile, when Xiao Bao takes her mother to the hospital, her great-aunt Xu Meihua and her husband, who harbor ulterior motives, trick her into signing a bone marrow donation consent form, intending to profit from Xu Zhaozhao's bone marrow. Realizing their conspiracy, Xiao Bao flees with her mother, only to be pursued and surrounded. At the critical moment, Fu Linghan arrives just in time.