In Death Note, the concept of justice as a personal vendetta is portrayed through the character Light Yagami, who takes it upon himself to become a self-proclaimed "god of the new world" by using the Death Note to eliminate criminals. Light believes he is bringing justice to the world by punishing those he deems as evil, but in reality, he becomes consumed by revenge and power, turning his pursuit of justice into a personal vendetta against anyone who stands in his way. This aspect of the series highlights the dangerous consequences of allowing personal motives to dictate one's sense of justice.
