The poor man in the plot is Zhen Xuan's sister Zhu Xuan. In the finale, Zhen Xuan's family had a newer and more reasonable understanding of Zhu Xuan.
As an introverted child, Zhu Xuan didn't tell his family or friends many of his inner expressions, so he had to bear it silently.
In view of the scheming design of Zhen Xuan, a sister who is very clever and sensible in others' eyes, Zhu Xuan can only eat Rhizoma Coptidis himself, which is too bitter to say. The family's misunderstanding of Zhu Xuan lasted for a long time until Zhu Xuan finally came back. My sister is still dissatisfied with her situation from time to time, and her family has different views on her. She thinks Zhu Xuan is selfish and strange.
Finally, with the unveiling of the fog, Nianmei's views on her aunt gradually changed the views of other family members on Zhu Xuan, and Zhu Xuan also welcomed the family members' apologies, which was a more appropriate ending for Zhu Xuan.