After years of war, the Southern Song Dynasty and the State of Jin were both exhausted, so they made peace. After the success of the peace talks, Song Gaozong's first thought was that military commanders were useless. At that time, Liu Guangshi, one of ZTE's four generals, had left the imperial court and there was no threat. The other three men were armed to the teeth and fought side by side with the soldiers, with high prestige. Once they have a counter-intention, I'm afraid it's hard to recover, so Song Gaozong took over the murders of these three people.
Zhao Gou started with Zhang Jun, whose mind was active and versatile. He guessed the emperor's mind from the clues, so he voluntarily gave up the relieving, cut off his robes and became a teacher with no real power, and in order to please Song Gaozong, he offered to help the emperor clean up the other two, which reassured Zhao Gou.
There are differences between Zhang Jun and Yue Fei. Zhang Jun is Yue Fei's old boss, but Yue Fei doesn't like Zhang Jun's lust for money and his lack of moral integrity. Yue Fei was loyal and loyal, and the more Zhang Jun forgot justice, Zhang Jun certainly didn't like him, so he later participated in Yue Fei's unjust case.