Xu Wei's mother, who was divorced because of her father's plane crash, didn't want to care about her... Her father's good friend Wen Yangqiu took her to his home to raise her, where she met her "sister" Wen Zhiyi, who was three years older than her. After Wen Zhiyi entered high school, she discovered her sexual orientation and started talking to different girls in school. Xu Wei also discovered this secret when she went to deliver daily necessities to Wen Zhiyi...
Intention: Reconciling the misunderstanding caused by discovering the secret after many years