Heart of the Ancient God

Harvest Continent is a magical continent where swords and magic coexist. However, this continent has been invaded by void monsters since ancient times. In order to fight against the void monsters, the supreme eternal core lowered its divine power and transformed some of them into ancient gods. It was hoped that the ancient gods would use their own power to fight against the void monsters and defend the continent. But some greedy humans seem to have other plans for the arrangement of the supreme eternal core... As a blacksmith apprentice from a lowly background, how will his fate change because of the heart of an ancient god?