Month X, XXXX.

In this world, you must kill to survive but some are chosen or fated to fight. The Unhuman beings that suddenly emerged in our country has brought great damage to certain countries, which was unavoidable no matter what we do. The other countries blamed us for the damages they received from the monsters instead of helping us. Those monsters emerged many, many years ago.

Somehow, the Scientist discovered a way on how to kill them and it's by shooting them with the substance called, A-UH.

It was tested and proven deadly to the monster and safe from the humans.

The soldier in our country was countable already, so instead of bringing soldiers, they take students and train them like a soldier, and was entitled" The Protector of the World", And that's where the A-UH Academy was built.

But there were certain people who was born with magical powers who don't need A-UH substances just to kill monsters. They can kill anywhere and anytime they want. But there are great counter-effects as they kill a certain number of monsters which can lead them to their death.