Zhou Mingrui, an ordinary young man from China, by a twist of fate finds himself in the body of Klein Moretti, a recent graduate of the history department at the Tingtong Institute in the kingdom of Loen—an otherworldly world where development has stalled at about a Victorian technical level, with steam mechanisms, airships, and firearms. At the same time, the inhabitants believe in a multitude of different gods, both good and evil. What’s more, almost immediately the newly summoned “isekai” hero discovers that he has been pulled into the affairs of mysterious beings from beyond—people with paranormal abilities who gained their powers by drinking special potions. But existence as an otherworldly being brings many dangers, because any of them may go mad and turn into a monster. And if Zhou Mingrui wants to stay alive and return home, he will not only have to force himself into another life in a new guise, but also plunge headfirst into countless deadly secrets of the world beyond…