Light Yagami, the main character in the anime "Death Note," ensures that his actions serve his ultimate purpose by meticulously planning and strategizing each move he makes. He uses the Death Note, a powerful notebook that allows him to kill anyone whose name he writes in it, to eliminate individuals he deems as criminals and threats to society. Light is extremely intelligent and calculating, often thinking several steps ahead to manipulate situations to his advantage. He also uses his sharp intellect to outsmart his opponents and avoid getting caught by law enforcement. Ultimately, Light's dedication to his goal of creating a utopian society free of crime drives his every action.
