After demons invade Earth, Gab is condemned to the brutal life of a slave in a world ruled by magic and monsters.

Then, in his darkest moment, he begins to hear it...

A voice only he can understand.

With the help of Awa, a beast woman of the moon tribe, he must find a way to survive this new world.

During his time as a slave he begins to hear rumors of the lady of the twelfth, a powerful demon who has set her sights on Gab and the rest of humanity.

And yet, all he wants… is to return home.