Isa is a simple and kind child from a rural family in Xinjiang. His mother is physically ill, unable to speak, and sometimes wanders away from home. Isa loves his mom dearly, and he goes to school while he works with his father to take care of her, which is a bit of a struggle, but he enjoys it. Isa and the quirky little girl Kelibinur are good friends, and the two of them raise a lovely lamb together, from under the grapevine to the poplar forest and the desert, everywhere is their innocent figure. Kelibinur and her brother's academic performance is not very good, their mother wants them to transfer to the city, the family out to work, the father disagrees, and the two often argue about it. Isa is still clueless about parting when she learns the text "The First Parting" in class, but her father decides to put her in a nursing home so that her mother can be better cared for, and Kelibinul has to transfer out of state again. What kind of growth do children experience in the passing of seasons and the parting of childhood? And what will they gain from it?