Li Zhenghong (Zhang Zhehao) was unwilling to be assigned to do paperwork in a law firm because of his blindness. He tried his best to participate in litigation, but he always ran into a wall. One day, he finally received a civil claim lawsuit, but he didn't expect that the defense lawyer in this case was Zhao Dingbang (Ban Tiexiang), the boss of his law firm. If he helped the plaintiff, how would he face his boss? What's more difficult is that this case is not an ordinary lawsuit, it is a multinational class action lawsuit with 531 plaintiffs. Li Zhenghong has never fought a single lawsuit, and he is a blind man. How can he win the lawsuit?