"I felt thrilled walking into the Ice Ribbon for the first time last year, although its interior was still in a rudimentary shape. But I still clearly remember that Li said he felt proud that the Olympics have given Chinese architects like him a chance to try new ideas and pursue their dreams on such a huge platform."

Another highlight of the documentary is China's emergency medical team for the Alpine skiing events. The country's first such team, it was established in 2018 gathering more than 100 professionals from over 10 hospitals in Beijing.

"The king of speed" at the Winter Olympics is downhill skiing, as athletes approach 140 kilometers per hour. With an injury rate of close to 15 percent, the discipline requires doctors to also master excellent skiing skills in order to get to an injured athlete within 4 minutes.

Ren says she has followed the doctors for more than a year, traveling with them in the biting cold at Wanlong Ski Resort, in North China's Hebei province, the medical team's training ground for the past four years.