Green train

An old man who lived long enough to break the Guinness World Record died on his birthday. Years later, a green train from the old era to the new era slowly opened, and the truth of the flood was discovered by going through the stories of different passengers. Is the imperfect world so scary! (Note: The novel has only a slight sci-fi background. Those who like hard sci-fi should look for good works elsewhere.) Content tags: ┃ Search keywords: Protagonist: No protagonist ┃ Supporting role: Every passenger is a supporting role