This was a train heading to District Seventeen.
There was only one passenger on the train.
That was because the train platform in District Seventeen had just reopened today; a gang skirmish had taken place a week earlier, resulting in gang members blowing up the entire platform with explosives.
The passenger leaned against the window, looking at the gradually emerging outline of the city in the distance. The time on the phone pointed to 18:03 in the evening, and nightfall enveloped the city, which didn't seem bustling.
Besides the night, there was also fog.
It had spread all the way here, with buildings appearing and disappearing in the mist. The train carriage felt somewhat chilly, and soon, a layer of white frost formed on the windows.
The passenger withdrew her gaze from the distance, looking at the words that slowly appeared on the train window.
"Don't go, don't go."
Someone outside the train had written these words.