Chapter 67: The Living Sewer

"What does that mean?"

Liu Zheng had a vague understanding.

"You humans have an immune system, you know?"

"I know."

He looked somewhat baffled.

Today, two weird residents were giving him a biology lesson, as if being uneducated meant he couldn't get through the instance.

"We, who aren't original residents of the sewer, are like foreign viruses or bacteria to it."

"Once we enter the sewer, it triggers its immune response, and the stronger we are, the more intense the response."

"So although I can cover you, I might not always be on time."

French Plane Tree explained.

"So that's how it is..."

Liu Zheng fell into thought.

Clearly, Niu Ma's plan had a flaw.

But it probably wasn't intentional.

Currently, it seemed that both his and French Plane Tree's information had blind spots and needed to be considered together.

"Having some protection is better than none, I still need to go down and try."

Soon, he made a decision.