A shocking comic adaptation of a hugely popular free game with over 25 million total views from playthrough videos!! A mysterious monster incident occurs in a certain kingdom where citizens are disappearing one after another and slimes are multiplying! The hero "Harold Kenjanocchi" receives orders from King "Kuromark" and sets out to solve this case――. His reliable companions are the mage "Marsha Uragiru," the swordsman "Therese Matohazurei," and the priest "Lucius Sugushinuyon"!! The four head out to defeat the Demon King "Yuushano Chiichi," the mastermind behind the incident, but they are immediately attacked by "Kusozakko," one of the Four Heavenly Kings of the Demon Army, and the priest Lucius dies immediately…! Can the remaining three join forces and successfully solve the case!? And what is the true identity of the "mastermind" behind this super shocking incident――!!? A new sense of adventure fantasy where you can't predict what happens next, the series restarts!!!