C222

Nalan Youyou raised her head to look at her surroundings. It was completely empty and devoid of people. The echo from the cave echoed in every corner, so she couldn't tell where the sound came from. It was as if it came from the sky.

The sound faded into the cave and another door appeared. Nalan Youyou walked over to the door, and just as the voice had said, there was a red chain above the door