The Ribbon Hero follows Sapphire, the princess of a kingdom that no longer exists. After losing everything in her homeland of Silverland to the calamity known as Nergal, she wanders in despair until she finally arrives in Goldland. For Sapphire, Goldland is more than a refuge: it is the first place where she can begin to imagine a future, even if only faintly.
Burdened by her past, she slowly starts to find a glimmer of hope as she encounters the kindness of the people there. But just as that fragile peace begins to take shape, the calamity Nergal appears once more. The same despair that once reduced Silverland to ashes now threatens to steal the light from Goldland as well, forcing Sapphire to confront the fear of losing everything again.
"I won't lose anything ever again. And I won't let anyone else lose anything either." Brushing away her tears of sorrow, the girl takes up her sword and ties her ribbon, resolving to defy her fate as a lone hero.