Lin Wan and Cheng Yi meet in the comments section of a Honor of Kings video, brought together by her remark, “Yao is so hard to play.” From game tutorials to daily “Good morning” and “Good night” messages, they promise to meet in person after 900 days. During the countdown, they share their lives and secrets through a screen, and Cheng Yi’s extraordinary attentiveness helps heal Lin Wan’s sensitivity and insecurity, shaped by her troubled family. At last, they meet and move in together, building a vision of the future in their rented apartment. But one snowy night, Cheng Yi dies in an accident. Lin Wan falls into a winter without him, warming herself with memories through the frozen days. In time, she learns to live again with the love he left behind. After all, the coldest winter leaves an eternal spring deep in the heart of someone who was truly loved.