Soul Eater
Volume 1

Maka is a scythe meister, working to perfect one particular scythe until it is good enough to become the weapon used by Shinigami-sama, the spirit of Death himself.

Her scythe is a demon called Soul Eater, which can change form to a human-looking boy. In order to make Soul Eater powerful enough to be Death's Weapon, he must eat the souls of 99 humans and 1 witch. It'll be a miracle if Maka even survives - let alone manages to make Soul Eater into the Death Scythe!