One young teen arrives in an entirely new world after a disastrous fight with his omnicidal sibling. Only armed with his Soul, the clothes on his back, and what Gold he had left, he sets out to try and survive in this new world without abusing his powers. But he underestimated this world's ferocity somewhat. This wasn't home, this wasn't anything he was used to. He just hoped his Determination would be enough to allow him to find the best path to this world's Golden Ending. After all, being a savior was all he knew. Here came the Determined Mage from Another World!