As the long years passed, Chen Mu's realm slowly rose as well.
By now, Chen Mu had cultivated to the Level 10 Realm.
In this world, this could be considered the highest realm.
At least, that was what Chen Mu understood.
Even so, Chen Mu's cultivation speed was still not slow.
For three billion years, Chen Mu had spent all his time in arduous cultivation.
It was a long stretch of time, but Chen Mu had experienced too much arduous cultivation before. Naturally, the passing years meant nothing to him.
There was nothing in the outside world for him to worry about.
He could remain on Central Island and cultivate without interruption.
At this moment, Chen Mu had reached the Level 10 Wizard Immortal's limit.
Once again, his realm stood at the brink of a breakthrough.
Reaching the Level 10 Limit over several hundred billion years might not have been the fastest pace in this world.
But it was definitely not slow.
Still, Chen Mu was not surprised.
Because he had expected that he would be able to reach this point.
Chen Mu's lifespan was still immensely long.
It was more than enough to support another breakthrough.
That was, breaking through into the Level 11 Realm.
That was right. Chen Mu still did not feel that he had reached his limit.
This meant that he could continue cultivating.
If he wanted to continue cultivating now, he would need to face a breakthrough in his realm. This breakthrough would determine whether he could become a Level 10 Cultivator.
Chen Mu absolutely could not afford to be careless.
He had to temper the foundation of his Level 10 Realm to its limit before making the breakthrough.
This process was not unfamiliar to Chen Mu.
Although he had not tempered his realm during