"...Those are the rules, remember not to break them."
The rules the medical staff told the two were the same four rules Zhou Yuan saw with his Eyes of Identification.
"Where did you learn these rules?" Zhou Yuan asked.
"They're written on the wall over there." The medical staff pointed to a wall in the distance.
The wall was in a blind spot of Zhou Yuan and Chen Guangxi's line of sight. They took a few steps forward and craned their necks to see it.
On the white wall, lines of rules were written in blood. The writing had been there for an unknown amount of time and had turned black.
[These were left by Qin Youwen to warn those who came after.]
Qin Youwen... Zhou Yuan felt a slight stir in his heart.
"So someone figured out the rules here..." Chen Guangxi squinted her eyes, then asked, "Have you heard of someone named Dong Jie?"
"Oh, Mr. Dong, of course. I've played many games of chess with him," the medical staff answered.