After being summoned to another world, being tormented, and being toyed with by a god, Nolin finally managed to stand up against him. However, he was powerless against him even after many years of training. After suffering a decisive defeat, Nolin was sent back to his original world. Back to a world where although magic exists, it is primitive.
Having been deprived of his previous powers, Nolin has to start from zero. Due to his knowledge and experience, he already knows what to do, but for some reason, it is slower to progress, yet after every step he takes fourth, he gets stronger than he should be. Who knows, someone from behind the scenes might be helping him.
Nolin's first goal was to live a leisurely life and get strong enough to kill that god, but he is forced to save his world from a certain being, who has the power to connect worlds.