In a world ruled by swords, magic, and noble power, she opens a shop.
To outsiders, it looks ordinary.
Inside, however, she sells things this world should never have seen.
Firearms. Ammunition. Weapons capable of changing the outcome of wars.
But the woman running this shop is not truly from this world.
After dying in the modern era, her soul transmigrates into the abandoned daughter of an Emperor and Queen Consort. Cast aside since birth due to the lack of a spirit core, she grew up far from the palace that should have been her home.
Now armed with the knowledge of modern weaponry and guided by a mysterious system that rewards trade, strategy, and expansion, she begins building a business empire from a small storefront. What starts as simple transactions soon attracts powerful nobles, military factions, and secret organizations desperate to obtain the terrifying technology she controls.
Because in a world where wars are fought with steel and spells, the woman who sells guns holds the future in her hands.
As her influence grows, dangerous figures gather around her. Two androids with absolute loyalty. A nobleman whose quiet devotion slowly turns into love. A possessive demon lord. Others are drawn by power, curiosity, or something far more complicated.
And behind it all lies her true purpose.
Revenge.