"You know who I am, right?" Hyana is a survivor of a country that was once destroyed by the empire. She has always traveled to various lands alone and lived as a blacksmith. She is happy when she is praised for her blacksmithing skills... One day, when she was savoring such a small joy, a mysterious man appeared who knew her secret. The secret being that she was given the secret power of the empire, the Rune of Fire eight years ago when her homeland was destroyed by an empire that sought its power. This man who knows Hyana's secret is also an enemy... "Or at least I thought so, but it's not that simple...?" The long-awaited first episode of the historical fantasy TL following "Sengoku no Hanayome", begins with the meeting of two people who share a secret with each other!