Himeka Yayoi 21 years old. Medium-length brown hair. She has a bright, active, and friendly personality, acting as the mansion's mood maker. She has adored the protagonist since childhood. While she is somewhat passive, feeling that simply being by his side as a maid is enough, she has a strong libido and is often sexually frustrated. She fully embraces the polygamous arrangement and is happy about becoming part of a large, close-knit family.

Rena Tsuchiya 20 years old. A gyaru characterized by a long blonde ponytail and tanned skin. She is an optimist who is bright, positive, and doesn't sweat the small stuff. Sensitive to trends and fashion, she prefers revealing clothes when not in her maid uniform. Possessing high social skills, she can get along with anyone and is another mood maker of the house. She treats the protagonist casually, but she watches him closely and has a kind side, being the first to encourage him when he's down. She has a strong sex drive and is honest about her desires. she views the idea of a large family as fun and exciting.

Toko Kanbara 22 years old. Dark gray wavy short hair. A maid with a somewhat elusive and mysterious aura. She usually maintains a calm and composed attitude but loves to tease the protagonist. She is a total "kiss fiend" who loves kissing; she intentionally gets close to him just to enjoy his reaction to her suggestive words. Despite her little-devil persona, her feelings for him are genuine. She is the type to show her affection more proactively than anyone else and has a strong libido. She is tolerant of polygamy, believing everyone should just love the protagonist in their own way.

Saori Hiiragi 22 years old. A tall, slender woman with sleek straight black hair and black-rimmed glasses. She has a serious and pure atmosphere, the very definition of an honor student. Her work is meticulous and polite, and she serves as the voice of reason who keeps the eight maids organized. However, she actually has little romantic experience and secretly longs for sweet, lover-like interactions, hiding a strong libido beneath the surface. She feels embarrassed about this side of herself and finds it hard to be honest in front of the protagonist. Though initially bewildered by the polygamy, she has accepted it positively.

Rin Takasaki 22 years old. A "white gyaru" with straight blonde hair and fair skin. She is the leader who keeps the eight maids together; while bright and friendly, her speech is polite and respectful. Contrary to her flashy appearance, she is a brilliant honor student with a strong sense of responsibility. She performs her duties perfectly and is deeply trusted by those around her. She possesses leadership qualities akin to a student council president and treasures the protagonist. She spares no effort in self-improvement to be a worthy wife. She has a strong, frustrated libido but cannot bring herself to say it out loud. She is understanding and tolerant of the polygamous arrangement.

Ayumu Nishino 20 years old. A reserved, inconspicuous maid with short black hair and glasses. She is quiet and extremely shy, often stammering when she gets embarrassed. While not good at conversation, she secretly adores the protagonist. She actually loves doujinshi and reads them in secret during her breaks. She has a strong longing for romance, secretly fantasizing about a "stimulating love like in a story." Though her libido is high, she is too shy to take action in reality. She is tolerant of the polygamy.

Shiori Akizuki 21 years old. A maid with beautiful, sleek straight black hair and a traditional Japanese aura. Her speech and gestures are refined, and her calm elegance is her primary charm. Raised as the granddaughter of a wealthy rural landowner, she values etiquette and family lineage. She has a strong sense of chastity, but her hidden libido is powerful, leading to internal conflict and frustration. While initially puzzled by the polygamy, she has come to view a large family as a positive thing.

Airi Otsuka 20 years old. A maid characterized by short blonde hair and adorable drooping eyes. Despite her slender frame, she possesses feminine charm. She is friendly and bright, skilled at closing the distance with others. She naturally acts spoiled with the protagonist, often initiating physical contact like linking arms. She is quite proactive in romance, has a strong libido, and is the type to approach those she likes directly. She honestly adores the protagonist and is the most romantically aggressive among the eight. She holds the generous view that the more people there are, the more fun it will be.