One day in winter, Xiaolin's father suddenly left. Afterwards, Xiaolin suffered from a strange illness and couldn't fall asleep. Xiaolin's old friend, A Bao, broke into his life as a courier. The two of them wandered through the city streets trying to escape the plague like pain but kept circling in their memories. A mountain of express delivery, a samurai sword labeled incorrectly in Japanese, red dots on the sheets, and a collapsed city village. The whole city was waiting for a rain that was about to fall, and Xiaolin had a dream.