Tang Guo has been having a strange dream: a woman wearing black leather armor stuck her sword on the wall, and while saying "Miss, I'm sorry," she slit her own throat neatly.
This dream completely cast a shadow on Tang Guo's mind.
Until she went to college and discovered that her roommate looked exactly like the murderer in her dream.
The upright and sunny girl 1 vs. The dark and cold girl 2
The quick time travel story in the plot and the small world come from the author's imagination, so don't go into details.
The early update depends on the saved manuscript, and the later update depends on the hand speed.
Conception: