The story opens with Luciana Lutolberg, an impoverished countess, hosting her friends, Viscountess Beatrice Lilithcross and Baroness Miliaria Falancalt, at her previously dilapidated mansion in the capital. Her friends are astonished by Luciana's newfound elegance and the mansion's pristine condition, a stark contrast to its state just two weeks prior. Luciana, who usually adopts a more casual demeanor, maintains a refined facade for her friends, hinting that her new maid, Melody, is responsible for the transformation. The friends, concerned about Luciana's upcoming social debut and financial struggles, are relieved to see her situation improved, unaware of the true extent of Melody's capabilities.
The narrative then shifts to Melody's origin. In a past life, she was Mizunami Ritsuko, a genius Japanese girl who found the world dull until she witnessed a maid's graceful service, sparking an obsession to become the "world's most wonderful maid." Her dream was cut short when her plane crashed en route to the UK. Reincarnated as Celeste McMurden in a fantasy world with magic, she regained her memories at age six, renewing her maid ambition. Her mother, Serena, a kind seamstress with minor light magic, died when Celeste was fourteen. Six months later, Celeste discovered Serena's letter, revealing her mother was once a maid who fell in love with Cloud Reginbarth, an earl's heir, and gave birth to Celeste in secret. The letter offered Celeste a choice: pursue her noble lineage or her maid dream. Celeste vowed to become "the world's most wonderful maid," which miraculously awakened immense, uncontrollable magic within her.
Celeste, now a powerful mage, instantly mastered her magic, developing unique "Maid Magic" to achieve her dream. To avoid her noble father, she disguised herself by magically changing her silver hair and blue eyes to black, adopting the name Melody Wave, and left her hometown, telling everyone she was going on a grief journey to a neighboring country, while secretly heading to the capital. Two days later, her father's retainers, Sebre and Lect, arrived in her hometown, learning of Serena's death and Celeste's existence and distinctive silver hair. They pursued her, with Lect unknowingly encountering the disguised Melody in Trendybales, giving her directions to the capital-bound carriage.
On her journey to the capital, Melody used her magic to stabilize the carriage, creating an impossibly smooth ride that impressed her fellow passenger, Maxwell Riclentos, the Chancellor's son, who was unaware of her powers. Upon arrival, Max advised Melody to seek work at the Commercial Guild. There, Melody found her ideal "all-works maid" position at the Lutolberg Earl's house, despite the guild staff pitying her for taking a job with a notoriously impoverished noble family.
Melody arrived at the dilapidated Lutolberg mansion, which she enthusiastically viewed as a challenge. She met Luciana, who, dressed in shabby clothes, was overjoyed to have a maid and revealed she was the only resident. Melody, thrilled to be the sole maid and thus responsible for *all* duties, immediately took charge. She magically transformed her simple dress into a super-durable maid uniform and, using her "Alter Ego" magic, created fifty clones to clean and repair the entire mansion and prepare dinner. Luciana, studying as instructed by Melody, was served tea and later witnessed multiple Melodies cleaning the house. Upon entering the kitchen, she discovered three Melodies cooking, and then countless more from around the house, causing her to faint from shock.
Luciana recovered, accepting Melody's explanation of her clone magic. Melody then served a lavish dinner, using ingredients she "hunted" from the dangerous Vanargand Great Forest (a "Magic-Infested Land") with her invisibility and flight magic, unknowingly causing a stir in the royal court, where the King and Head Mage were concerned about an intruder in the sealed forest. Melody, oblivious to the danger, had even created a magical "Service Door" to bypass the Head Mage's detection barrier, ensuring her continued access to the forest for "maid duties." Luciana's life and house were now completely transformed by Melody's secret, immense, and often comically applied magical abilities, all in pursuit of her maid dream.
