This documentary is about the life of two Lisu brothers who live on the Biluo mountain where Nujiang River passes. The elder brother, Cilihua, is 17 years old and the younger one, Jialihua is 10. Their father died when the younger brother was only six months. Their mother remarried and settled at the foot of the mountain, leaving the boys to her mother and brother. There is no school on the mountain and the kids spend their time shouldering the family chores. Even with the misfortune and hardship, simple happiness is never far from their life.