Strenuous week

During the following week, Jason found that practicing the painful Heaven's Hell technique was one of the most relaxing things he could ever do, as the pain that he had received from injecting soul energy threads into his soul world core lessened to a great extent.

His soul energy was getting more and more stable while the circulation of mana was much easier due to the removed impurities.

With Malia's help, Jason imprinted the knowledge about all foundational and basic books into his mind as well as he could, but it was still very difficult.

His head had continued to ache almost all the time during the last week because of all the complex words and jargon inside them but it was still extremely practical.