It tells the story of undercover Song Qing and agent Xu Jiuran who met during a mission. Xu Jiuran mistakenly thought they were enemies and started fighting. Later, Song Qing temporarily left the enemy and returned to his own organization. By chance, Xu Jiuran, who was injured, was assigned a task to participate in teaching work for a month. It was also in the middle of this month that Xu Jiuran's secrets were finally revealed, and these seemed to be related to Song Qing.
Purpose: To commemorate those warriors who lost their families and sacrificed their lives for the benefit of the public.