The May 30th Massacre (also known as the May 30th Massacre, or the May 30th Massacre) was named after it happened on May 30th 1925, which was the fuse of the May 30th anti-imperialist patriotic movement. On May 30th, more than 2,000 Shanghai students distributed leaflets and delivered speeches in the concession, protesting against the suppression of workers' strike by Japanese yarn factory capitalists, killing worker Gu Zhenghong, supporting workers and calling for the withdrawal of the concession. 100 people were arrested by the British police. In the afternoon, more than 10,000 people gathered at the gate of Nanjing Road in the British Concession, demanding the release of the arrested students and shouting slogans such as "Down with imperialism". British police shot and killed 13 people on the spot, seriously injured dozens of people and arrested 150 people, which caused the May 30 tragedy that shocked China and foreign countries.

"In the drizzle on May 30th" was written on the second day of the May 30th tragedy. Through what I saw and heard in Laomen, I accused imperialism of killing the people of China and praised the patriotic people's will to struggle. The full text uses metaphor, symbol, description and other techniques. It has strong artistic appeal.