Light Yagami's perception of justice in Death Note is often characterized by his extreme belief in his own sense of justice and his willingness to go to any lengths to achieve it, even if it means resorting to unethical and morally questionable methods.
Compared to other characters in Death Note, such as L and Near, who also seek justice but approach it from a more rational and methodical standpoint, Light's perception of justice is seen as more radical and fueled by his desire for personal power and control. While L and Near prioritize the rule of law and due process in their pursuit of justice, Light is more inclined to manipulate and exploit the Death Note for his own ends.
Overall, Light Yagami's perception of justice stands out in Death Note for its intensity and the moral gray areas it delves into, setting him apart from other characters in the series.