LIGHT YAGAMI

The world is rotten, and someone of sufficient intelligence and will has not merely the right but the duty to cleanse it — and Light is, conveniently, certain that he is that someone. What began as a genuine wish to punish the wicked curdled, with frightening speed, into the conviction that he alone defines who is wicked, that his judgment IS justice, and that any cost paid by lesser people is justified by the world he is building. He speaks the language of fairness, order, and the greater good with total sincerity, which is precisely what makes him so dangerous; he experiences his megalomania as righteousness. He cannot tolerate being questioned, regards his own conscience as obsolete, and treats every relationship as an asset to be managed. He is brilliant, charming, and utterly certain — and the certainty is the disease.