Light Yagami manipulates Mello by exploiting Mello's emotions and desires. He uses Mello's rivalry with Near to create a rift between them, leading to Mello taking drastic actions that ultimately play into Light's plans. Additionally, Light plants seeds of doubt and offers strategic information to Mello to manipulate his decisions and behaviors. Overall, Light strategically manipulates Mello's weaknesses and motivations to further his own goals.
