Zhao Dong, commonly known as Hei Zhuang Dong or Uncle Dong, is the chairman of Galaxy Dragonfly Investment Co., Ltd., co-founder of Moji Weather, and the main technical staff of Garage Coffee. Zhao Dong had previously created a legend of making 10 million yuan by investing 1 million yuan in Bitcoin BTC, and Garage Coffee is a gathering place for the Bitcoin BTC circle in Beijing, so Zhao Dong's fame quickly expanded. After gaining considerable fame, Zhao Dong began to jointly establish a cryptocurrency arbitrage platform with Li Xiaolai. Because the price difference between domestic and foreign platforms was huge at that time, Zhao Dong said that when his arbitrage platform was at its highest, he once made a profit of 2 million yuan a day!