The end of the world is coming, the global map is disrupted and reorganized overnight, cities disappear, and civilization collapses.
The only thing connecting this broken world is a black train that never stops - K-9523.
It has no driver and no destination. It only shuttles between countless island-like "stations".
Each site is trapped by a group of "residents" solidified by obsession;
At every site, there is a door hidden.
Open it and untie your obsession, and you can obtain supplies and truth fragments, but at a price——
It is to lose a piece of one's own memory.
City planner Shen Ye is the only regular passenger in Car No. 6 Of the train.
He is calm, perceptive, and can see clues that others cannot.
With each site's mysteries he solved, he found he was losing more and more memories.
And those memories seemed to be related to a person waving to him in the fog.
Who is that person? Why has this seat been waiting for him?
At the end of the site, is it the truth of the doomsday or his past that has been buried long ago?
——
In the fog, the train was heading towards the dark red light spot.
