One Kingdom. Animalia. Two Sides. Three Classifications. The Tamed. The Brutes. The Pests. Blade - a former wild street orphan- has been taken under the care of a peculiar man, who soon becomes his guardian. When suddenly he dies of a venomous spider bite, Blade ends up accidentally falling into the Kingdom. Ranking up to the top of the chain Blade soon learns that his guardian's death might not be so natural after all.