Nine-year-old Zhou Nian'an is long neglected by her parents; suffering a fracture, having her paintings torn and necklace destroyed, while her parents are always absent for their adopted daughter Ruanruan. She bears it silently, and after donating blood to save Ruanruan, chooses to live long-term at her uncle's home. When her parents awaken and try to make amends, she calmly refuses to return to her original family, reclaiming herself solely within the care of her uncle and aunt. Ultimately, the family rebuilds their relationship amidst understanding and boundaries, and Zhou Nian'an learns to express her needs, no longer acting as the "sensible" sacrifice.