Morally Ambiguous Anime Protagonists

Be it the intriguing questions they pose on the nature of good and evil, the value of human life, or whether ends justify the means, protagonists whose morality can only be viewed in shades of gray have been a mainstay in anime for many years now. Such individuals are often tormented by the demons of their past, and struggle to find a place for themselves in the world, especially when contending with the binary view of morality that society imposes on them.