Soon, the Demon Emperor finished his first day of classes. Once class ended, everyone went their separate ways, showing no intention of talking to one another.
This left the Demon Emperor somewhat disappointed.
Although the lessons covered everything thoroughly, the Demon Emperor still felt there was too little knowledge.
So he took the Fire Barbarian King with him to the Library.
There was only so much time in a day. He had to seize every minute and every second to improve himself.
The moment he entered the School Hall, the Demon Emperor had begun planning his course of study. He would make the fullest possible use of his time.
He would study all kinds of knowledge.
Among the methods the Demon Emperor found on the forum, the most efficient way to learn was the Doppelganger Technique.
That was right: he would divide his body into countless individuals. Each would exist independently, returning to his body at regular intervals, at which point everything they had learned would merge into the Demon Emperor's original body.
The greatest advantage of the Doppelganger Technique was its use in learning, allowing him to study multiple subjects from every angle.
Its drawback was the enormous drain on his energy. Under normal circumstances, an ordinary Primordial Stage cultivator would exhaust their mental power after producing a hundred or so doppelgangers.
After each division, they would need many days of rest to recover.
Even so, this remained an extremely popular and widely accepted method.
Creating doppelgangers was actually easy. The hardest part was making each one an independent individual, then merging them again when needed while integrating every doppelganger's experiences and knowledge into the soul.
After all, doing this too often could easily cause the soul to split and suffer damage.
Though the Doppelganger Technique was useful, most