The Sword of begining

This a short story that tells a tail about a sword of light that only the purest of heart and a man or women with best intentions can wield it. Many people have tried to master it but perished under the power it holds. It lays dormant with it's guardian ,not a fighter but with protect it with their life, to only be found by the right person
It'll probably be a little story telling the origin of the blade before I get into the main story.