Krune Is Neither Human Nor Demon

As he remembered the various ways Raka had tortured him, Krune's expression turned cold. For a moment, all the people living in the old age home experienced a sudden chill, as if they had returned to the battlefield once again. 

The chill disappeared in less than an instant as they wondered if they were going senile. As for Krune, he quickly controlled his emotions, returning to normal. Even though it seemed like he hadn't changed much from before, only did now Krune realize that he was almost like a different individual. 

He understood that he was capable of vicious things now that his prior self couldn't have even thought about. He still tried to stick to his old ways, but once his switch was flipped, he was even worse than the devil.