Four years have passed since the Demon King was defeated. The kingdom has regained peace and has begun a project to compile the hero's many great achievements into a document in order to honor him. As they listen to the hero's past and adventures from his former companions, the knight Leon, the priest Maria, and the sage Solon, they all remain evasive about the truth behind his death. "Why did the hero die?" Was it the Demon King who killed the hero, or was it one of his companions? This fantasy mystery is an ensemble drama that will keep you glued to your screen, mixing the deeds and emotions of the kingdom and adventurers.