Light Yagami from the anime "Death Note" handles the emotional toll of his actions by initially justifying them as necessary for the greater good of creating a crime-free world. He becomes increasingly consumed by his power and the righteousness he feels in his actions, leading him to distance himself emotionally from the consequences of his actions and view his victims as mere obstacles to his goals. Over time, this detachment from the emotional toll of his actions leads to a transformation in his character, leading him to become more ruthless and isolated, ultimately impacting both himself and those around him negatively.
