Light Yagami's pursuit of justice in the anime "Death Note" greatly impacts his relationships with his peers. As he becomes consumed by his desire to create a utopia through the use of the Death Note, he distances himself from his friends and family, manipulating, deceiving, and even harming those around him to achieve his goals. His relentless pursuit of justice results in isolation and strained relationships with his peers, who eventually come to fear and mistrust him.