One hundred mamodo (known as "mamono/demons" in the original version) go to Earth every 1,000 years to battle to be the king of the mamodo world (referred to as makai in the original, which can be translated as hell). Each mamodo has a particular element which it can control and attack with, a set of body supporting spells, and other spells (e.g. a defensive spell), all via the use of a special spell book. Each mamodo needs a human partner in order to use his or her spell…