C6210 The Strength of a Hundred Thousand True Dragons

Lu Yu had stayed underground for a full seven days, and had been in a meditative state the entire time. There were no distracting thoughts in his mind, and his heart was free of dust. He was completely immersed in cultivation.

For many cultivators, seven days was actually quite short. However, with Lu Yu's current cultivation efficiency, seven days was enough for him to reap a lot of benefits