于正
On December 21, 2020, Guo and Yu Zheng were highlighted in a joint letter signed by 111 Chinese film and television industry insiders. The joint letter called for immediately stop the publicity and hype of the two who have plagiarism and bad traces, and revise and adjust the related variety shows they are currently participating in. On December 31, 2020, Guo and Yu Zheng issued their own individual apology through their respective Weibo accounts after 156 had signed the letter. Guo also offered Zhuang Yu all the revenue he received from 'Never Flowers in Never Dreams' as a form of compensation.