After meeting Butcher, something hidden in Klaus awakened, driving him to seek out more strength.
Although he expected things to be much different, Klaus was already aware of the fate that had met some of the friends he had had in his past lives.
One could even say that it was through these many experiences that he found a way to send his friends and loved ones into the cycle of reincarnation whenever he was about to reincarnate himself.
But meeting Butcher made him realise that he still had much to do and learn, and so he was now looking for a way to ensure his life was not cut short by the scheming heavens.
"If it is a fight against the heavens, then so be it. I will become a Chaos stage warrior before the awakening, and there is nothing they can do to stop me."
Klaus clenched his fist, a determined look appearing on his face.