Then she found a way to sneak onto a train heading to Ha City.
In this era, there were no direct trains; you had to switch trains multiple times to finally reach Ice City.
...
Yishui infiltrated Unit 7 for a month. After thoroughly understanding everything she needed, she began poisoning in phases. The first phase targeted those outside the perimeter, people who were not important. Only when they died would the ones behind them feel frightened, perhaps even suspecting that it was their own gas leak.
The fear in the heart and mind is more terrifying than physical destruction. Those so-called scientists were the final targets of her punishment.
This time, she chose the most potent poison. From ingestion to transforming into a pool of blood, it took only ten brief hours, a full day and a half earlier than expected.
