On February 22, 2026, the little girl Hai Can lived alone in a dilapidated building. Her 42-year-old mother Wu Shanxiang went missing looking for her puppy on May 2, 2025.On August 5, 2025, with only 201 days left, Chen Shiqing from Xiongchuan City and a group of students said goodbye to Zheng Xiayu and then came to the city hall to serve as disaster mental health counselors.

On April 29, 2025, the government implemented martial law due to the impact of the asteroid Dinah in 300 days. Ha Lunxiang, who was in the United States at the time, could only use video to talk to his girlfriend Shiqing. Riots broke out on both sides, and Lunxiang wanted Shiqing.He went to find Father Bai, but Father Bai was captured by the soldiers.Students from the second grade of Quandong Middle School participated in a protest, but were kidnapped by prison escapees. Several students died tragically, and the class teacher Shiqing was very sad.

Xia Yu's family failed to immigrate. Xia Yu wanted to run away from home, but her father Zheng Xiuqin threw a shoe on her head. A passing woman and classmates Pu Zhenshu, Liu Zhaomin and others took her away. Xia Yu wrote to Shiqing and told her to move near her home.In order to kill the people who killed other classmates, Shiqing asked Jiang Yinya for help, but Yinya asked her to protect the students by herself.When Shiqing sneaked into Fang's house in the middle of the night and wanted to kill him, she found that he was already dead and ran home in fright.