The Knowledge of a Tiny Soul

Then, there was the soul and impose pressure transformed by The Giant Dragon impose pressure. The power of the will poured into Abel's brain. This would instantly wipe out the opponent's intelligence on the power of the will. The Giant Dragon was known as the most advanced life form. Their imposed pressure can suppress almost any other life-especially when purely in terms of the power of will. When there was no defense, the Impose Pressure of The Giant dragon was invincible.

Lastly and most importantly, a pure soul was required to consume another power of the will without being affected themselves. Abel's weak little soul matches these criteria well. Though it inherently has no intelligence, through the countless soul potions, it had grown similar to a proper soul, though still incomparable to a real soul. Therefore it was able to grow and flourish after swallowing the power of the will with no side effects.