In this world of humans fearful of the increasing number of monsters,
the undeniable whisperings that the Demon King has returned are spreading…

The thief Batz, who thinks he is the center of the universe,
pays these rumors no mind as he lives his life as usual, stealing anything he wishes to.

One day, while on his way to a bandit’s hideout he heard is being attacked by monsters,
Batz is assailed by a monster himself. Luckily, he is saved by a battle maiden passing by…