In 1991, as an exchange scholar of the University of St. Petersburg, Kong Xiaohu departed from Zhengzhou, Henan Province, and set foot on the land of Russia, which he had longed for. What he brought to the strange city of St. Petersburg at the same time were 8 sweaters, 10 pairs of children's cotton pants, some corsages, and a heavy yearning for the outside world. After all, it was the era of "business at sea".