Isekai Majutsushi wa Mahou wo Tonaenai

Yard, a magician of considerable talent, is abruptly summoned from his own world to another realm, called forth as one of its Heroes. Upon arrival, however, he discovers that the sorcery of this new land is hopelessly primitive compared to the magic he commanded back home. To make matters worse, the other summoned heroes prove utterly unreliable, and there is no way to return to his former world. By every measure, Yard's situation appears completely hopeless. Yet rather than despair, the magician simply chuckles to himself. Turning his thoughts toward the humans of this world—a realm where witchcraft lags so far behind his own arts—he offers a quiet warning: he happens to have an enormous toy waiting in his box, and he fully intends to play with it. And so begins the rampage of a true villain. Wielding Dark Magic of overwhelming power, the malevolent sorcerer Yard sets out to trample this other world beneath his heel.