Lao Zheng (Zheng Huan) is a little-known travel writer and photographer. In order to see the snow, I came to Hokkaido with my friends Lao Qiu and Lao Chu, but met my favorite girl Li Shuyin in Tokyo. Lao Zheng used his own way to accompany the lovelorn Li Shuyin, hoping that she could go to Hokkaido with him. Lao Zheng was destined to wander, and Li Shuyin wanted to follow him, but in the end he had to succumb to the responsibility of "parents not traveling far away" and the traditional lifestyle of starting a family and establishing a career. Lao Qiu and Lao Chu also returned to normal life, gave up their status as scholars, and ended their wandering. Only Lao Zheng continued to move forward alone.