In a village in Lak Township, Xide County, Liangshan Yi Autonomous Prefecture, there is an ordinary family with an elderly grandmother, an introverted and understanding sister, a mischievous and stubborn younger brother and a younger sister who needs to be taken care of. The adults go out to work to make a living, and come home only a few times. Fighting in Winter and Spring" is about the daily life of the siblings in this family who are always fighting against each other. The older sister quietly takes care of the young and old in the family and often gets angry at her younger brother for his lack of schooling, while the younger brother is very rebellious against his sister's discipline and often comes home with bruises left over from the fights on his face. Because of a choir audition to meet their parents in Shenzhen, these two siblings stumble upon each other's hearts and sing from their hearts.