Cheng Zi: Judging from the introduction on Douyin videos, he is the leader of the hiking on the east slope of Mount Qomolangma. Cheng Zi has first-class cooking skills. During the hike, he can always prepare delicious meals for team members and add a touch of warmth to the arduous hiking journey. He has rich outdoor leadership experience and is very familiar with the terrain and climate of the east slope of Mount Qomolangma. During the hike, he will adjust the itinerary reasonably according to the physical condition and actual situation of team members to ensure the safety and health of team members.