On a snowy winter night in the north, eleven-year-old sister Lin Xiaohe, in order to get medical treatment for her gravely ill younger brother, reluctantly entrusted him to a kind-hearted couple while leaving alone, carrying the stigma of being abandoned. Twenty years later, the brother has grown up, filled with resentment in his heart, and is persistent in searching for his sister. When the truth is unveiled, that snowy farewell turns out to be a chance at survival bought by his sister with a lifetime of hardship. Half a piece of jade is finally united, the siblings recognize each other, and twenty years of frost are melted by family affection.