**Story Synopsis:** Amu is a Kazakh boy who grew up in a pastoral area in Xinjiang. He has never received professional training, but has amazing talent for long-distance running. A retired marathon coach discovered him on the grassland and took him out of the mountains to join the provincial team. But what Amu faced was: altitude sickness (reverse adaptation from low altitude to high altitude), unsuitability to city life, rejection by professional athletes, and a cruel fact - his running posture was all wrong, and his muscle memory needed to be completely overturned. But he has something that urban athletes don't have: a willpower that transcends physical limits, which he developed from racing wolves on the grassland since he was a child.
