Xin Hui may not know that Yang Yun likes winter best, the kind of winter when he wears a thick down jacket, breathes out when he talks, and the whole world is illuminated by snow, because Yang Yun himself didn't know it before leaving the north. Many times she would think about whether what she liked was the past feeling or because the memory with Xin Hui started in winter. It doesn't matter anymore, right? It's all related to Xin Hui, right?
Intention: To write to first love, to every past self