50 years ago, a group called “Reapers” changed the history of the world, marking the unending war between each race.
However, in the middle of chaos, these “Reapers” mysteriously vanished.

Years have passed and although the humans are deemed to be the weakest, destined to be doomed, a hero appeared within them getting the favor of heavens, they managed to stand above almost all races. They became an equal enemy of the demons. In years they created their own “Paradise”, being able to live in peace

However, what if this paradise is just a false hope? Deceiving all to hide the truth that lies deep in the past.

…

This is the story of the event that took place in the current era. This revolves around a human mage named Frugel who went to the forest which is outside of the human’s territory, with her classmates, as part of their investigation ordered by the academy. However, a dark turn happened as Frugel find herself being hunted by a mad monster. A barrier also mysteriously appeared trapping her inside the forest. When she thought that it’s the end of her life, she was saved by an “Oni”.

In her journey to escape and find her way home, she encountered things she wouldn’t ever imagined as the events from the past came to light once again.