In the anime "Death Note," Light Yagami often uses manipulation as a tool to control and influence those around him. He manipulates others to achieve his goal of creating a world free of criminals, using his intelligence and charisma to deceive and exploit their weaknesses. This manipulation leads to complex and intense relationships with other characters, characterized by power struggles, betrayals, and moral dilemmas. Ultimately, Light's manipulative tactics have a significant impact on the dynamics of his relationships and the outcome of the story.