Middle-aged mercenary Takashi Suzuki dies after a long career as a hired killer and is reincarnated by a mysterious goddess into a fantasy world under the name Rei. His new mission is to stop thirty-two Japanese students who were summoned as heroes, granted extraordinary powers, and are now destabilizing the world around them. Partnered with elven warrior Lydina, Rei combines modern combat experience with newly learned magic while questioning why the goddess wants these heroes eliminated at all.