What does the ending of Anti-Drug 2 mean?

The story of "Anti-Drug 2" is mainly because the boss Yu misunderstood the Tibetan novel he played. Boss Yu hates buying and selling drugs, and forbids anyone under him to buy and sell drugs. As his subordinate, because he didn't take good care of the venue, someone bought and sold drugs in his venue, which was discovered by boss Yu, and then his finger was cut off and he was fired. In fact, this was a misunderstanding from the beginning. If Atian (Andy Lau) had said something about Dizang at that time, there might not be a story behind, but he didn't help to speak, which planted the seeds of hatred for Dizang's heart, and then the story began to develop step by step.

Atian, played by Andy Lau, has a successful career, but the road to family and feelings is very bumpy. First, I followed Zheng Zeshi to mix the underworld, and my ex-girlfriend ran away pregnant; Then, after having a wife at the back, because Atian had concealed something about herself before, Zou Wenfeng's wife at the back also ran away. When Atian, who hated drug dealers, offered a reward of 654.38 billion yuan to kill the biggest drug dealer, Atian and Dizang, two brothers who had been mixed up in Tibet for more than 20 years, broke up completely and began to kill each other. As a result, when Zou Wenfeng left Atian, he was ready to go. Dizang's men killed Zou Wenfeng by mistake, which completely angered Ah Tian. With the following lens, Atian is ready to start crazy revenge!

After the story is finished, I won't go into details. I believe everyone will see it, but you will notice one detail. When the staff of Tibetan men reported the assassination of A Tian to him, he said that when Zou Wenfeng was killed, the expression of Tibetan men became very complicated. As a cold-blooded drug dealer, it's strange. Did Zou Wenfeng and Dizang know each other before?

However, there is another detail in the play, that is, when Atian and Dizang were at the racecourse, Dizang and Atian met once. At that time, Zou Wenfeng said that he didn't know Dizang and asked Ah Tian, who is Dizang? Judging from the arrangement of this detail, Zou Wenfeng should really have nothing to do with Dizang, and they don't know each other. Di Cang, played by Louis Koo, was shocked after accidentally killing Zou Wenfeng. He and Andy Lau should have complicated feelings, but they are actually good brothers. They just want to put all their grievances on two people, unlike hurting their common family, which Dizang doesn't want to see.

Finally, two good brothers, Atian and Dizang, shot at each other in the subway and thoroughly understood their grievances. A Tian finally met his wife Zou Wenfeng in heaven, and his wish came true, and he had his own child.