The Day of Days

In the 1930s, when the Nationalist Government ruled China, triad leader So Fei operated a coolie business, but due to financial difficulties, he tried befriending the simple-minded Sung Lai Woh, whom he had misunderstood to be a relative of the wealthy Tong family.
To his surprise, Lai was just a small potato in the Tong family, the actual head of the Guangzhou business world, and the eldest daughter in the family is Tong Nga Yun. Not only does Yun have money and power, but she's also a bold, daring and courageous woman, unfortunately, she sacrificed her youth for her family business. She also spoils her younger sister, Tong Nga Man.
Man is a rebellious young woman and deliberately started dating So Fei to irritate her sister. When the Tong family were living an aimless life, Guangzhou's powerful mayor, Wong Kai Yiu, unexpectedly gets shot, shocking the entire city. Lai, who had a mysterious identity, was appointed as the new Guangzhou mayor... the inauguration ceremony happened on the 5th day of the Lunar calendar, which was also the day when the evil-doers started causing trouble.