Editor's Note: CGTN launches a new series called BizFocus, where anchors and reporters explore the most vibrant business sectors and events in China. Through in-depth interviews with industry experts and on-the-ground coverage, we bring you the latest developments and trends in various business sectors.

This winter, Harbin has become China's hottest city, attracting millions of visitors. Our reporter Wang Tianyu recently traveled there and found out why a less well-known city has suddenly become a hot trend.