Light Yagami At first glance, Light might seem like your average overachieving, hyper-responsible teenager, and to most, that's all she is. Beneath this polite veneer, however, lurks a darker personality, one whose clashing high ideals and cynical disgust cause her to adopt extreme methods. Light is a young Japanese woman, standing at above average height with light-brown hair and brown eyes. She owns a black notebook that can kill people whose names are written it named the "Death Note".