C243 Tunnel Mansion

He wanted to find an answer. He turned his eyes to Mu Yeh, but he still looked arrogant and ignored his gaze. Nangong Qing felt defeated at this moment. No matter how fierce and cold-blooded he was in the underworld, he couldn't deal with these few people in front of him.

"What's behind this door? It can't be connected to the laboratory over there