Saya is part human, part monster, and has one thing on her mind: revenge. Visions of twisted experiments and creatures slaughtering everyone she loved fuel her thirst for vengeance. With blade in hand and rage boiling in her veins, she tracks her tormentor to Tokyo. As Saya slices her way through lies, traps, flesh, and bone she wonders how much blood she will have to shed before she meets the mastermind behind her madness.