It’s Black Whirlwind-Li Kui.
Li Kui met Song Jiang for the first time and got money from Song Jiang, but he lost the bet. Several people went out to eat together. Song Jiang wanted to eat spicy fish soup, so Li Kui volunteered to go to the river to beg for fish. As a result, because the owner of the fish seller did not arrive, he had a dispute with the boat guard, and Li Kui mistakenly let all the fish escape. The fishermen were very angry and beat him with their poles, but Li Kui defeated him.
At this time, Zhang Shun arrived and the two fought, but Zhang Shun was defeated. Fortunately, Song Jiang and Dai Zong came to dissuade him. But Zhang Shun refused to accept it and used provocation to lure Li Kui onto the boat. The two fought on the river. As a result, Zhang Shun pulled Li Kui into the river. Li Kui did not know the nature of water and was subdued by Zhang Shun. At this time, Song Jiang said that he had a letter from brother Zhang Shun. Therefore, Zhang Shun fished Li Kui ashore.
Extended information
Zhang Shun is a character in "Water Margin", nicknamed Langli Baitiao, a native of Jiangzhou. He dominated the Xunyang River with his brother in his early years, and later went to Jiangzhou to do Fish teeth. He participated in rescuing Song Jiang and causing great trouble in Jiangzhou. He was one of the twenty-nine heroes of Bailong Temple.
When Liangshan gathered for justice, he ranked 30th. He was on the Yingtianxingxing and served as the leader of the navy. He captured Gao Qiu alive in a water battle against the official army. He died in the battle at Yongjinmen in Hangzhou during the expedition to Fangla. Because of his meritorious service in "capturing Fang Tianding's soul", he was posthumously awarded the title of General of Jinhua.
Baidu Encyclopedia - Bai Tiao in the Black Whirlwind and Fighting Waves