It's Not Too Late This Summer

The heroine Suru lives with her aunt and uncle after her parents died. Her aunt Li Axia died in childbirth, and her uncle Zhu Yulang's family also suffered changes. In order to save her aunt's surviving son Zhu Yixia, Suru was forced to "become" Zhu Yixia's biological mother. Zhu Yixia changed her surname to "Lu". Later Suru sacrificed her life to hide her secrets, and finally "Lu Yixia" was able to recognize her ancestor and return to her family.