C309 Dream on

It was five o'clock the next morning when I got back to City A.

In the middle of the night, I fell asleep in a daze, but I didn't fall asleep.

When I walked out of the train station, my head was still dizzy.

Compared to S City near the sea, the air in A City was still much worse.

Today was a foggy day, and ten meters away, no one could be seen.

However, although it was very early