Xiaohua's mother is an illegitimate daughter born to Jia's mother when she was young, while Jiang's father is not Xiaohua's biological father, but Jia's mother's secret admirer. Jia's mother gave Xiaohua to Jiang's father and sent him to an orphanage, but Jiang's father raised Xiaohua because he knew that this was the biological daughter of the person he secretly loved, and he never married Xiaohua! Jia and his mother are not related by blood, just a stepmother! It's a little complicated anyway!