Summer flower of summer snow

Six years after the end of the previous work "The Trajectory of Summer Flowers - A Summer Promise to Forever", the protagonist Lin Jiajun is about to graduate from college. His best friend Zi Xiaoqi in the class is asking him to think about himself almost every day. Until one day, Lin Jiajun's old friend Wu Wanxue came to his home for a few days to collect materials for her graduation project. A dusty past that happened six years ago also surfaced...