The Song of the Forbidden Book of Summoning Souls, which had been sealed away by the Black Moon Order for generations since the Middle Ages, was stolen. Mysterious black magic and more than a hundred kinds of battle summons have flowed into the world, and the originally stable and peaceful continent has entered a period of turmoil. The giant alien creatures developed by humans to resist unknown summoning spells have gone out of control due to immature technology. More and more "monsters" appear in different sea areas, forests or wilderness. When military weapons became increasingly unable to deal with the activity and destructive power of mutated creatures, people began to try to borrow the summoning skills of the Black Moon Order to deal with these giant monsters. As time evolved, a true demon-hunting corps, supported by the Sanside royal family and established by Archibald, the former second bishop of the Black Moon Island Order, the Royal Deacons, a global demon-contractor mercenary organization, followed the tide of the times and stood at the pinnacle of the job of killing alien creatures.
This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.
