Heroine? Saint? No, I'm an All-Works Maid (And Proud of It)!

A dilapidated mansion swarming with crows, a gate covered in rust—that was the Rutlberg family's home... at least, two weeks ago. Friends who visited the mansion after a long time were astonished by the transformation! Luciana, who greeted them, was remarkably refined, and the tea she served seemed to be of the highest quality. The reason for this was a maid named Melody. A maid who loves and aspires to be one, she had come to the Rutlberg family to become an "all-works maid," entrusted with all the duties!

Luciana, worried about Melody leaving all the work in the large mansion to herself, goes to check on her. Luciana is impressed by the sparkling clean rooms, but shortly after parting ways with Melody after she finishes cleaning, she encounters her again...? Puzzled, she heads to the kitchen, only to find multiple Melodies there! Luciana faints from shock. The true identities of the Melodies are her newly developed "maid magic"...!?

Christopher and Annemarie are racking their brains over the "heroine" who never seems to show up. Having regained their memories of their past lives, the two know that this world is the setting for an otome game, and that a heroine who inherits the power of a saint is needed to fight the Demon King. However, even after checking the school's roster, they can't find the name of the heroine. At this rate, the scenario will go awry...! While the two are growing increasingly anxious, Melody herself is...

Melody, disguised and trying to sneak into the ball, is easily seen through by Luciana. Just then, the host announces the start of the "same-sex couple dance," and Luciana invites Melody to dance. Melody braces herself for what Luciana might say, but is moved by Luciana's dedication to following her teachings, and the two begin to enjoy the dance. However, Melody's magic goes out of control as she gets carried away with the fun—

Realizing the malice, Luciana shields Christopher and is attacked by the intruder. This is the "Ballroom Attack Incident" by Buuk, a boy whose heart has been seduced by the Demon King—the first important event to occur in the game. Annemarie and Christopher had prepared countermeasures, but they are forced to struggle against the Demon King's power. As Annemarie tries to treat Luciana's injuries, she checks her back. However, there is not a single wound there...

The Demon King, now in the form of a puppy, has been washed by Melody. While struggling with what to do with him, Melody's heart flutters at the ideal scene of Luciana playing with the puppy and herself watching over them, and she immediately begins preparing to welcome the puppy. After eating, she sees that the puppy is having trouble falling asleep, so she begins to sing a lullaby imbued with magic to help it rest. Her beautiful voice envelops not only the puppy but the entire royal capital

Annemarie had slipped out of the mansion in disguise and come to the castle town. She had been visiting the town occasionally as "Anna" to relax for a while. However, this was an important day for an event to occur in the game. The Crown Prince was supposed to rescue the heroine from some rough-looking men, and then it was supposed to lead to a date—but the girl who was there had black hair. That's right, the one being harassed was Melody!

The Royal Academy dormitory is completed, and Luciana will be living there. Melody decides to go with her, but there is no one to manage the Rutlberg family estate while they are away. So Melody creates a doll maid, Serena, with her own hands. Preparations for going to the academy are steadily progressing, and Luciana and Melody head to the dormitory with a mix of anticipation and nervousness. Waiting for the two upon their safe arrival is Luna, the daughter of the Invidia family, who lives in the room next door.

Luciana and the others were looking at the results of the test that had been held the other day. On the posted ranking list, Luciana's name was listed as third in the grade. Luciana was happy that she and Luna had achieved top grades in the class. That rank should have been where the heroine was supposed to be. However, now that the heroine hasn't appeared, Annemarie begins to think that perhaps Luciana is taking on that role instead. Meanwhile, Olivia was watching the happy Luciana and the others with a cold gaze...

Maika, who has started working for the Rutleberg family, immediately recognizes Melody as the game's heroine. In fact, Maika is also a reincarnated person with memories of her past life. Up until now, she had relied on her knowledge of the game to get by. However, upon arriving at the Rutleberg family's home, she learns for the first time that the scenario has changed. While Maika is confused, Melody is thrilled to be called "senpai" for the first time. Meanwhile, at the academy, a series of incidents involving vandalism in classrooms begin to occur, and an ominous atmosphere starts to permeate the air.

Melody and the others try to cheer up Luciana, who is feeling down after being suspected of vandalizing the classroom. Maika, thinking that her game knowledge might be useful, suggests that she also go to the academy to investigate the case. When they arrive at the academy, the love interests have personalities that are different from those in the game, and they seem as if they have already been conquered... While they continue their investigation despite being confused by the differences, Luciana is being accused by the students of a crime she did not commit, namely splashing water on Annemarie.