Meister Maka Albarn and her weapon partner Soul Eater have collected 99 kishin souls, souls of weapon meisters and death scythes who have eaten human souls, causing their souls to become corrupt and turn into what they call kishin, and only need the soul of a witch to turn Soul into a death scythe. The two seek out the witch Blair, who frequently gets the better of them and tries to seduce Soul. During a battle, Soul tricks Blair into thinking he wants to abandon Maka and become her weapon, allowing Maka to take her soul. Unfortunately, nothing happens when Soul eats it, as Blair turns out to be a magical cat rather than a witch and had merely lost one of her nine souls. As penalty for this mistake, Lord Death confiscates all the souls they've collected, forcing them to start over.