At the start, Xia Ling and Xia Yu were orphans.
After being adopted by Pei Ziheng, Xia Ling said that she wanted to set the day of their adoption as her birthday, and Xia Yu followed suit. Thus, the birthdays of the two sisters were set on this day. For many years in the past, the three of them used to commemorate this day together. Sometimes, Pei Ziheng would be impatient and tried to persuade Xia Ling to spend time with him the day before their birthdays without Xia Yu. Either that or he would spend the afternoon with both of them and spend more time with Xia Ling exclusively at night.
That was until Xia Ling passed away.
On this day last year, Xia Yu was drunk as he knocked on his door. She cried in his arms and said that she missed her sister. That night, she wore her sister's favorite dress and her sister's favorite jewelry, looking like a weeping beauty. In a trance, it was as if Xiao Ling were alive again.
