My God, this is beautiful, in the most twisted way.
An ideal started to take root in Noriko's mind very early in her life, warping her thoughts and making her throw away her values and humanity, making her harm others physically and psychologically, and ultimately culminating in self-mutilation in her quest to turn (more like force) this ideal into reality.
What a beautifully written, bile-inducing, tragic story this is. With a gorgeous cover to boot.