It took Musk close to half a month to completely familiarize himself with the power of heaven and earth. In the past half a month, he managed to see the other kids but they did not seem to be awake at any time and thus he ignored them.
At the same time, he also realized that the membrane in the sky above him seemed to become smaller with the passage of time. Walking around the place, he was already sure that nothing more could be gained as he had just increased his domain when comprehending heaven and earth to about 15 cm around him. This was indeed small, but the impact it had was not that mediocre. Those who have not comprehended the power of heaven and earth would be easily suppressed by this.