Fang Yuan, an addict gambler, caused the deaths of his mother and sister due to his debts. Just as he was about to end his life in despair, the Wealthy Boy appeared and gifted him a mystical Dragon Key. Fang Yuan discovers that he has been transported to the 36th year of the Great Qi Dynasty, where his identity has transformed into the notorious gambling young master of the Fang family. Still in shock and unfamiliar with this new world, Fang Yuan is soon hit with the news that his mother, Zhang Guilan, and his sister, Zhang Qian, are about to be cast out by his father, Fang Tianxiong, because of his reckless gambling.