The COVID-19 pandemic has challenged the effectiveness of China’s state apparatus and accumulated social discontent in the first half of 2020. Aided by a creative adaptation of a popular music video, a group of Chinese feminists initiated a short-term movement on the Chinese Internet in protest of the propaganda campaign of the Communist Youth League of China. The debut of two anime characters (Jiangshanjiao and Hongqiman) amid the pandemic stirred up strong grievances which led to an online feminist movement. Utilizing mashup videos, the movement, though ephemera, delivered a powerful counter-public discourse of women’s sufferings, which resonated widely in the digital sphere. Adopting a cultural perspective of Internet memes, this study closely examined the metamorphosis of a music video from an apolitical fanatic tool to sarcastic “guichu” mashups and eventually a powerful feminist counter-public discourse. Findings from this study suggest the strong potential of participatory mashups in the articulation of counter-public narratives from grassroots Internet users.