Light Yagami, the main character in the anime "Death Note," initially views his role as Kira, a vigilante who kills criminals to create a utopia, as a righteous mission to rid the world of evil. He rationalizes his actions by believing that he is making the world a better place by eliminating those he deems unworthy of living. However, as the series progresses, Light's ego and desire for power lead him to become more ruthless and detached from the moral implications of his actions. He starts justifying his killings as necessary sacrifices for the greater good, even willing to sacrifice innocent lives to achieve his goals. Light's handling of existential questions and moral dilemmas becomes increasingly skewed as he descends into megalomania and loses touch with his initial ideals.
