Light Yagami's actions, as portrayed in the anime "Death Note," have a significant impact on the psychological well-being of those around him. His ruthless pursuit of justice through the use of the Death Note, a notebook that allows him to kill anyone whose name he writes in it, creates an atmosphere of fear and paranoia among those who become aware of his abilities. This leads to increased levels of stress, anxiety, and distrust among his friends, family, and adversaries. Additionally, the moral dilemmas presented by Light's actions can cause inner turmoil and ethical conflicts for those who are close to him, further affecting their psychological well-being. Ultimately, Light Yagami's actions have a destructive influence on the mental health of those around him as they grapple with the consequences of his choices.