As he spoke, Klein raised his right hand.
A piece of pitch-black and filthy flesh had appeared in his palm at some point in time. It contained an indescribable aspect of madness.
"The answer is: The Hanged Man's corruption," Klein said to Shadow with a smile.
The thing that he had that Shadow didn't was the corruption left behind by the True Creator. This was an influence that even the power of Sefirah Castle couldn't dissipate for the time being!
And one thing he was certain of was that, before he met Dark Angel Sasrir, the True Creator wouldn't easily allow him to lose control or die.