An Ran, the little punk from Ninth Street, was just reading a fairy-tale book to relive her childhood, but even that went wrong: a System that had lost a bet dragged her into the book to help it complete missions. So... why does everyone else transmigrate into power fantasy novels with strong female leads or romance stories, while she gets a fairy tale?!
After saving the little prince, Yaheya, who could barely defend himself, An Ran found that every mission inexplicably took place around him, and she even had to hide her identity now and then. No matter. "I, An Ran, never leave my name when I do good deeds!"
The scheming heroine An Ran really, really doesn't want to be won over. But the male lead is just too pure and kind, treating her with a gentleness and innocence no one in the real world would ever show her. Her initial disdain gradually turns into... "This is actually pretty great." With the missions nearly complete, An Ran came clean to Yaheya before returning to the real world. For the first time, her eyes held such careful sincerity. "Would you... come with me?" After Yaheya agreed without hesitation, An Ran promised, "We'll never be apart!" The System hesitantly spoke up. "Host... there's too great a difference between the fairy-tale world and the real world... He probably won't be able to handle it..." Swallowing back her tears, An Ran knew she couldn't make the man she'd worked so hard to win suffer for her sake. On a moonless night, she slipped out of the castle with her little System. "Sorry, I'm still putting my career first. As for love and all that, heh... whoever takes it seriously loses!"
But a few days later, as An Ran rode in a carriage to carry out her final mission, someone blocked her way. The boy who stepped out of the black carriage was unmistakably the one she'd been longing for.
"So... why did you run away? I gave up everything for our promise, and you just left me behind?"