This had led to a war breaking out between the two states.
 The ruler of the Trettaze state started to attack them in every possible way, banning imports and exports, barring tourists from the state to enter the territory etc. This was the kind gesture of the ruler who gave the human beings the equal opportunities to join the universities and have a working career in the state even when some demons had a notion of looking down upon the humans. Emiko with her own "Devil Weapon" begins her journey to defeat the enemies, and to become the best warrior in the state and abroad.