The first time I saw Dan Chun was in the gentle breeze and drizzle in the south of the Yangtze River. A pretty woman holding a white transparent plastic umbrella, with slightly raised eyebrows, lively eyes, and unique shoes, making a clattering sound. Her slim figure was outlined in the rain curtain, like a painting, falling with the wind in the humid air of the rain alley in the south of the Yangtze River.