Company employee Sano Jyu, who had a frail constitution, always had a sensation of heat inside his body. Then, he collapses due to the combination of a busy season and an outburst of fever. Then the goddess appears and tells him. You have made a mistake in the world in which you should be born. The cause of the fever is magical power, and he was born with magical power in a world without magical power... Itsuki is reborn in another world with a healthy body and more magical power than any other person, just as he wished, thanks to the power of the goddess.