Jianghu rules, this is what Lin Fan heard from Li Zhen, the underworld, has its own rules. You could say the underworld is the closest existence to "Jianghu." Jianghu rules are about taking vengeance, the law of the jungle.
If you offend others, according to Jianghu rules, you have to be prepared for retaliation. Of course, if you're strong enough, you don't have to worry about retaliation, but if the opponent is stronger than you, then you have to accept your fate.
In the underworld, there is no right or wrong, only strength and weakness.
Lin Fan can't exactly be counted as a person of the underworld, even though he currently controls the underworld in Yun City.
In Lin Fan's view, even the strong shouldn't bully others or stir up trouble lightly.
Strength is meant to protect the things you want to protect, not to start conflicts.
