Light Yagami's actions in the series "Death Note" have a significant impact on the perception of justice and morality. His initial goal of using the Death Note to rid the world of criminals is seen as a quest for justice by some, but as he descends into megalomania and begins to use the Death Note for personal gain and to eliminate those he deems as obstacles, his actions blur the lines between justice and vigilantism. Light's belief that he is the ultimate arbiter of justice challenges traditional notions of right and wrong, ultimately leading viewers to question the morality of his actions and the consequences of pursuing justice through such extreme means.
