We Are All the Same

On the steps of the flowerbed in front of the hospital, Zhou Ze sat there silently, his gaze fixed on his feet.

Actually....

at this moment, you couldn't see anything at all. You couldn't even touch it. However, the scene in the mirror had already explained everything.

This chain was attached to his ankle. The sound that he had heard indirectly was the sound that was caused by his movement.

However, there was one thing that Zhou Ze did not understand. When he was in the detention center last night, he had clearly heard the corridor outside first. This at least proved that the chain was not on his feet at that time.

Then, this also meant that when the sound of the chain suddenly appeared around him, someone, or something, had tied the chain to his feet.