For plain little Nina, working as a maid in the house of Count Mirkwood was her entire world, until a false accusation of breaking a cherished vase has her swept out onto the streets with nothing but the clothes on her back. Jobless and with nowhere to turn, Nina decides to embark on her first solo journey, determined to make the best of her newfound independence. What no one realizes, least of all Nina herself, is that she is no ordinary maid. Having followed her master's strict orders to never stand out, she performed all of the mansion's cooking, cleaning, and logistical work in complete obscurity. Now, with her gone, the Mirkwood household descends into utter chaos.

As Nina travels, she encounters a series of unlucky girls whose talents cannot bloom. First is Emily, a mage boasting an abnormal amount of magical power who cannot use magic properly. Then comes Astrid, a brilliant inventor whose experiments always fail at the last moment. Finally, she meets Tien of the Moon Wolf Tribe, a hungry orphan who has no strength because she cannot keep food down. When these struggling girls meet Nina, their true potential awakens. Whether clearing blocked mana meridians with a specialized massage or adjusting a finicky invention to perfection, Nina's superhuman competence as a maid solves every problem placed before her, sweeping her new friends off their feet and drawing them into her orbit as she continues her journey across a fantasy world that desperately needs her skills.