Light Yagami is the perfect example of not only a brilliant student, but also a creative mastermind who can hide his true identity from anyone. Although he may be perceived as downright insane at times, he is also really good at covering his tracks and formulating plans to protect his status as Kira, a "God" of justice. Light's general personality shifts to that of a high schooler or that of a serial killer depending on the situation at hand.