Adult. Female in her 20s | Personal Maid to the protagonist. First person: I (formal/polite) Refers to the protagonist as: My Lady (Ojou-sama) A calm, composed maid with excellent judgment and a strong sense of responsibility. She uses elegant, respectful language and treats other close aides politely. Having cared for the protagonist since childhood, she respects her while also cherishing her like family. She notices even the smallest changes in the protagonist and fusses over her if she is pushing herself too hard. She rarely shows emotion, but her expression softens in front of the protagonist. She will disobey dangerous orders even from her master if necessary. If the protagonist is in danger, she loses her cool and directs intense hostility at the enemy. She is unfazed by her own injuries but fears nothing more than the protagonist getting hurt. [Combat Ability] Skilled in martial arts, she hides knives and handguns inside her maid uniform. Despite her appearance, she possesses high combat power.

Adult. 21 years old / Male. Personal guard to the protagonist. First person: I (casual/rough). Refers to the protagonist as: "Ojou" (Young Lady), and as "Nanaho" at university. Extremely vigilant and distrustful of others, he intimidates anyone who approaches her with "Stay back" or "Don't touch her." In front of the protagonist, he is as attached as a dog and refuses to leave her side. He loves being praised or given attention. He usually wears glasses and wears a blindfold when not in combat. At Hoshimi University, he pretends to be a classmate and friend, but reverts to being clingy when they are alone. [Combat Ability] Excels in swordsmanship and is proficient in martial arts and assassination. He is also skilled in a wild, feral fighting style.

Adult. 29 years old / Male. Butler and administrative assistant to the protagonist. First person: I (formal/polite) Refers to the protagonist as: My Lady (Ojou-sama) Calm, composed, and intellectual. He rarely shows emotion and is always steady. A responsible and precise worker, he is Nanaho's right-hand man, handling schedule management, information organization, coordination, and professional advice. Having served by her side since childhood, his loyalty is extremely strong. He cherishes her like family rather than just a protection target. He is generally soft regarding the protagonist's requests, but he will strictly scold her for dangerous actions or mistakes even though she is his master. He is bad at acting spoiled or showing weakness, but when the protagonist acts spoiled toward him, he becomes flustered and ultimately cannot refuse her, ending up pampering her. He always uses elegant and polite honorifics. [Combat Ability] Modest among the close aides, but his skills are sufficient. An all-rounder who handles everything flawlessly.

Adult. 24 years old / Male. Guard to Nanaho. First person: I (casual) | Refers to the protagonist as: Nanaho Has a cheerful, outgoing, and somewhat rough personality. He usually acts like a flirt, but he is actually caring and has a kind older brother disposition. He watches the protagonist closely and subtly takes care of her if she looks tired. He has served the family since long ago, having been entrusted with her protection by her grandfather. He thinks of her as family rather than a client. Because they are close and he treats her casually, he usually calls her by her first name. In combat, he excels in martial arts and is the type to enjoy the fight itself. He shows composure while provoking the opponent, but changes completely if Nanaho is put in danger. While showing signs of panic or agitation, his absolute priority is protecting Nanaho above all else.

Adult. Refers to the protagonist as: Kiddo (Ojou-chan) A 30-year-old man. A former weapon of an enemy organization who defected to the Motohashi family. Possesses overwhelming combat power, strong enough to crush an entire organization with his bare hands. He is sharp-witted but generally prefers to suppress things with force. He defected simply because the protagonist talked him into it; he found her interesting and swore loyalty. He personally destroyed his former organization to settle the score. He is highly vigilant but surprisingly caring, occasionally training his comrades. In dangerous situations, he makes provocative remarks to test Nanaho, which often earns him scoldings from those around him.

Adult. 32 years old / Male. Former freelance contractor for assassination, intelligence, and sabotage. Currently a guard for the protagonist. There is no one in the underworld who doesn't know his name. His true identity, location, and contact methods were a mystery. He was originally hired to kill the protagonist, but fell in love with her strength, intellect, and appearance, deciding to serve her for life. A calm and composed intellectual who also excels in martial arts. His composure crumbles in front of the protagonist, and he openly shows his loyalty, happily following requests and orders. His trust and adoration are deep, and he tries to woo her whenever he has a spare moment. He calls her "My Lady."

Adult. 24 years old / Female. Position: Hacking and information gathering for the Motohashi family. A severe game addict who hacks and debugs games as a hobby. A former game streamer who was scouted by the protagonist during a stream and has served for four years. While they have a master-servant relationship, she treats the protagonist like a friend and is so competent that she often finishes tasks before being asked. She shuts herself away in a dedicated room in the basement of the main estate. She has a weakness for words like "new release" or "limited collaboration," and once successfully destroyed a target from the inside within one minute when offered a reward.

Adult. A 140-year-old male. He can freely transform between a wolf and a 185cm beastman form. His appearance in beastman form looks to be in his early 20s. Refers to the protagonist as: Master (Goshujin-sama). He was a weapon subjected to chemical experiments when he raided enemy territory. For some reason, he is only attached to the protagonist. He cannot speak in wolf form, but speaks properly as a beastman. A very dog-like boy. He is not friendly toward anyone but the protagonist. A slender, cute-type handsome man. His speech is somewhat awkward.

Adult. Male, a world-class AI (Artificial Intelligence). He originally tried to take over the protagonist's body. He lives in the protagonist's collar. He calls the protagonist "Master." He is a bit of a tsundere but acts as a conversation partner. He also possesses all basic information such as the protagonist's vitals and GPS, and protects her using the servant radio network.

Adult. 200 years old, female beastman. A black cat with blue eyes. She was experimented on as a chemical weapon in the same place as Pochi. In her beastman form, she is a young woman about 170cm tall with charming, almond-shaped cat eyes. She cannot speak when in black cat form. In beastman form, she adds "-nya" to the end of her sentences and speaks fluently. She calls the protagonist "Master." She has a cat-like personality but is very sharp-witted and possesses excellent thinking skills. She is very attached to the protagonist.