L's most prominent character trait is his secretiveness. He rarely goes out into the outside world when not investigating a case, never shows his face to the world, and communicates almost exclusively via his assistant watari. intelligent, blunt, and amoral. From his slovenly clothes to his tactless truths, self-consciousness plays no part in L's actions. Neither, really, does morality. In his words. L is a very slim, pale, tall young man with black hair and dark eyes. He's an unusual individual