Light Yagami manipulates Misa Amane by taking advantage of her infatuation with him and her desire to support his cause of eliminating criminals using the Death Note. He plays on her emotions, making her believe that she is an essential part of his plans and that she can help him achieve his goals. Additionally, he uses her Shinigami eyes as leverage, as she gains the ability to see the true name and lifespan of any person by using them, which further ties her to him and his mission.
