Rewards

Noel spent two hours inside that space to swing his blade according to the Sword Saint's instruction. He was shocked by how much a toll that his swing took in his mind. 

It seemed that the Sword Saint had considered everything, including his limit. After the swing, he continued to the next training to cut through the Spiritual Energy. This was the uniqueness came from Ardagan itself, who was a living spirit instead of a normal sword.

Still, there was one more important thing he learned in this space. It was about the runes. 

The Sword Saint gave him the remaining knowledge about runes that he had been lacking this whole time. With this knowledge, he could create many runes of his choices. He could even read the runes that sealed the Ancient Demon Tree.