In the past, this world has a history of having fought against the demon tribe for the survival of the species several times.Although the Demon King was sealed by three generations of heroes, the entire continent is in a state of savagery and danger. Traveling through such a world is Johan, an unsympathetic magician. Johan is a man who does not mix his private and public affairs.Even so, he sometimes gets carried away by his emotions.His hobbies are killing wild thieves and hoodlums.He also likes to preach and agitate. Imadoki no Sabasaba Adventurer is a dark fantasy in which Johan, living in the present, travels through a world that has been savaged by several battles with demon tribes.