C1342 Level of improvement?

Increase in realm?

Following Chu Chen's call, the movement inside the Chaos Tower also became louder and louder, until one could feel a throbbing sensation within.

Chu Chen had naturally felt it, as his soul had fallen into a deep sleep inside the Chaos Tower.

After returning from the Devil Island, Ye Qing had been sleeping soundly the entire time, as if he had consumed a lot of energy