A year ago, Mu Yiyi left home to live alone in the United States because she could not accept the news that her father told her that she would marry her boyfriend's mother. She returned to T City because of a high school class reunion invitation. She had to return home because of the loss of her wallet. At home, she had tit-for-tat confrontations with her father and stepmother. Her father's accidental car accident made the already sensitive Mu Yiyi even more sensitive. The hedgehog-like Mu Yiyi always raised her thorns when she was vulnerable and pricked the people who tried to hug her.
After being hurt again and again, Mu Yiyi finally found her own happiness, but she had to give up her happiness because of responsibility.
