The boy who broke the wind promised that the main character in the morning was the boy Kankuanba. Malawi, a small African country, is plagued by witchcraft, drought, famine, plague and AIDS, and only 2% people have access to electricity. The only thing that is not lacking here is the wind. Fourteen-year-old Kankuanba decided to build his own windmill for power generation. After dropping out of school, the scrap metal collected in the waste factory, borrowed my father's bicycle tires and the hose of the village head's house, and relied on the "Exploring Physics" of the rural library. After many "crazy" experiments, I finally built my dream windmill. Everyone has his own dream. Kankuanba, a teenager who controls the wind, turned his dream into reality, thus changing his destiny.