柴進
Yin Tianxi is the brother-in-law of Gao Lian, the prefect of Gaotangzhou (高唐州; around present-day Gaotang County, Shandong) and cousin of Grand Marshal Gao Qiu, who serves in the imperial court in Dongjing. Covetous of the mansion of Chai Jin's uncle, Yin has been harassing the family to force them to surrender it for free. As the old man would not budge, the latter orders his thugs to beat him up. Chai Jin hurries from Cangzhou to Gaotangzhou when told of his uncle's condition, but the latter soon dies from his injuries. Yin comes again to seize the house. He orders his men to beat Chai Jin, who obstructs his way at the gate. Liangshan's Li Kui is with Chai at that time as he has been ordered to stay away from the stronghold, at least temporarily, as an appeasement to Zhu Tong. Zhu is furious with Li for killing a magistrate's four-year-old son placed in his care. The killing is ordered by Wu Yong, Liangshan's chief strategist, to leave Zhu with no choice but to join Liangshan. Seeing Chai Jin is bullied, Li Kui charges forth and thrashes Yin to death. Chai tells Li to flee. When told of Yin's death, Gao Lian is furious and orders Chai be arrested, dismissing the latter's "danshu tiequan" as a piece of empty and obsolete document.