Rose Potter and the Heart of the Forge

At the end of the 5th holy grail war, Shirou was left empty and broken as everyone who was important to him had died. "What is a sword without purpose?" he asked himself. But then a god observing their world whisked him away and reincarnated him into a world of magic that far differs from what he knows. A place where Gaia and Alaya don't exist. Will he eventually find purpose here?