In the minds of everyone who has met Xu Can, the word "Xu Can" is neither a noun nor a pronoun, but an adjective.
No one could have predicted that Xu Can, who was once outgoing and lively, would suddenly disappear mysteriously one day. When he saw her again many years later, she looked frightened and lonely, without the pride and sunshine she once had. She shrank, her eyes were gloomy, and she had forgotten everything, including her name. The girl she saved back then consciously took on the responsibility of saving her, just as she appeared like a ray of sunshine in her gloomy life when she was young.
Intention: Life has its ups and downs, and life has its ups and downs.