Legend has it that during the flood period, the Chiyou Jiuli people ruled the land of the black dragon, and the Jiuli people were good at farming, smelting copper and iron, making five soldiers, creating a hundred arts, tomorrow's way, and rationalizing and educating the country of Jiuli, which had created a prosperous civilization. Later, due to the defeat of the Yan and Huang Emperors, the Jiuli Kingdom declined and disappeared. However, the royal bloodline of the Jiuli clan carries the top civilization of the Jiuli country, mysteriously disappearing, looking for and waiting for the opportunity for them to make a comeback in the future. Hundreds of years have passed, the mysterious royal bloodline of the Jiuli clan has long become a legend, but in this black dragon land, it has been stubbornly surviving a force, and it has not dared to leave this original land for several generations and generations, it is the Green Dragon Gang, with the mission of preserving the key to reopening the door to the world.

This key is known as the hundred-year-old secret of the Blue Dragon Gang, and each generation only passes on the secret of the successor in person when the previous generation leader is about to pass away, and there is no written record.

Uncle Jiu's original name was Wu Jiang since his grandfather's generation was a member of the Qinglong Gang, Uncle Jiu was different from ordinary children since he was a child, he memorized four books and five classics at the age of 10, and memorized historical records at the age of sixteen, and was greatly appreciated by Liu Tiannan, the gang leader at the time, and even married his granddaughter Liu Qianxu, who was only 4 years old, and agreed to get married after 14 years. Later, Liu Tiannan passed away, and his forty-year-old son Liu Hongshan took over. Liu Hongshan has only one daughter in his life, Liu Qian, and she is a daughter in her thirties, so she loves Liu Qian in every way, as long as Liu Qian likes Liu Hongshan, she will definitely be satisfied. Although Liu Hongshan, who was originally a father, also admired the intelligent Wu Jiang, after all, he was 12 years old apart from his daughter, so he was not willing, and he reluctantly agreed because of his father's majesty. Now that he has become a helper, he naturally no longer mentions this marriage, and others naturally dare not talk nonsense. Therefore, Liu Qian grew up unrestrained since she was a child, and she was like an elder brother to Wu Jiang, and she had no personal feelings for children.

When Liu Qian was twenty years old, she met the tall and handsome Gao Zhan, who had just returned from the army, at a friend's party, and the two fell in love at first sight. Originally, Liu Hongshan felt that Gao Zhan, who had nothing, was not worthy of Liu Qian at all, and resolutely disagreed with this marriage, but he didn't want Gao Zhan to come to the door every day to accompany Liu Hongshan to dinner. At first, Liu Hongshan refused to do so, and beat him out with sticks, but Liu Qian went on a hunger strike to protest, and Liu Hongshan and his wife were forced to have no choice, so they had to agree to Gao Zhan coming over to eat every night.

This Gao Zhan didn't come to eat and drink for nothing, he accompanied Liu Hongshan to drink a few glasses every day, and naturally talked about life planning and ideals at the wine table. I never thought that after talking about it for half a year, the more Liu Qian's mother looked at it, the more she liked this son-in-law who could speak well and coaxed her happily every day, and Liu Hongshan couldn't do without this young man who drank a few drinks with him every day and had great ambitions.

So with the support of his parents, the Liu family was prosperous, and happily married Liu Qian to the poor boy Gao Zhan, and Gao Zhan started from the smallest patrol policeman, all the way to the position of superintendent of the highest police station in Jiangbei City, and founded the Tianyin Gang. But no matter whether Gao Zhan is poor or rich, he has always been able to love Liu Qian as before, and the husband and wife share weal and woe, share weal and woe, and later gave birth to Gao Ting, the pearl of the palm.

So speaking of which, the two gangs of Tianyin and Qinglong are quite related. Speaking of Wu Jiang, his grandfather's generation has followed the old Liu gang leader, loyal all his life, and he is also loved by the old Liu gang leader, he is grateful, and he also knows that he and Liu Qian are far from the age difference, and they dare not covet it. Later, the gang leader of Liu Hongshan died of illness, and the 35-year-old Wu Jiang took over the banner of the gang leader.

Before his death, Liu Hongshan passed on the hundred-year-old secret of the Qinglong Gang to Wujiangkou, and at the same time told him that now is not as good as before, in order not to attract people's eyes, the hundreds of years of Qinglong Gang will be renamed the Qingyu Gang, and the business in the gang also needs Wujiang's generation to be able to adapt to the times.

Wujiang really lived up to expectations, inheriting the past and opening up the future, focusing on the development of the entertainment industry and casinos, making the Qingyu Gang prosperous and rich.