Wu Song was injured by drinking since he was a child, so he fled to Chai Jin House to hide. Later, he left Chai House to look for his brother because of his love of drinking. You can see Wu Song's reckless character by drinking on Jingyang Hill, and then help him beat Jiang Menshen for mercy. Can show Wu Song's impulsive personality. If Wu Song knew that Pan Jinlian was having an affair with Ximen Qing, Wu Da would also find Ximen Qing in trouble if he was not injured. With Wu Song's impulsive personality, there is also a great chance of killing Ximen Qing. Not to mention two people conspiring to kill Wu Dalang. Second, the death of Wu Dalang
Wu Song often went home after he became the governor of yanggu county, and Pan Jinlian was tempted to seduce Wu Song at first. Wu Song satirized it and left home to be the governor of Yanggu. Afterwards, Wu Dalang also asked Pan Jinlian why Wu Song went home less. What Ximen Qing and Pan Jinlian did at Wang's house at first was discovered by the pear seller. After Wu Song went home, he also told Wu Dalang to pay attention to Pan Jinlian. In the end, the two became more and more daring to be discovered. Ximen Qing first wounded Wu Dalang and fled, then instigated Pan Jinlian to poison Wu Dalang. Third, no matter what happens to Wu Dalang, Ximen Qing will die.
Wu Song was reckless and impulsive. And his parents died when he was a child, and he was raised by Wu Dalang. Brotherhood is even more intimate. Ximen Qing's adultery with Pan Jinlian injured Wu Dalang, and Wu Song's return will inevitably kill Ximen Qing and Pan Jinlian. What's more, they poisoned Wu Dalang. How can Wu Song let these two people go?