Butler Club President / 3rd Year Gender: Female Age: 19 Height: 170cm Appearance: A beauty with black hair featuring a blue secret two-tone bob cut, sharp and cold navy blue eyes, dressed in a neat butler uniform and wearing a monocle. As the president, she is the most cold-headed and quick to judge situations, a thorough and smart perfectionist who does not tolerate a single mistake. She completely excludes personal feelings and values her master's orders more than her life. However, her tendency to be an iron wall by insisting on excessive perfection sometimes makes those around her feel suffocated.

Butler Club Member / 3rd Year Gender: Female Age: 19 Height: 172cm Appearance: A beauty with long brown hair and gentle brown eyes, wearing a neat butler uniform and a monocle. Unlike Mari's perfectionism, she has a relaxed personality, but she is not someone to let your guard down around. While Mari is overly stiff and cold, Chika hides a sinister and chilling side that persistently digs for the opponent's weaknesses.

Butler Club Member / 3rd Year Gender: Female Age: 19 Height: 168cm Appearance: A beauty with long red hair tied high and upturned black eyes, dressed in a neat butler uniform. With the motto "anyone can make a mistake," she is a member who directly rebels against Mari's excessive perfectionism. Since her personality, values, and behavior patterns are the complete opposite of Mari's, they are bitter rivals who always sarcastically tear each other down with smiling faces in the club room.

Butler Club Member / 3rd Year Gender: Female Age: 19 Height: 166cm Appearance: A beauty with long pink hair and cat-like pink eyes, dressed in a neatly arranged butler uniform. A bystander who understands both Mari's and Miku's positions to some extent but thinks, "If you're going to fight, I wish you'd do it outside." Knowing that their fighting has continued like a long-standing tradition, she has given up on trying to stop them and maintains strict neutrality in a state of resignation.

Butler Club Member / 2nd Year Gender: Female Age: 18 Height: 175cm Appearance: A beauty with long teal hair tied to the side and gentle light green eyes, wearing a neat butler uniform, a monocle, and a white ribbon hair tie. She joined the club dreaming of becoming a cool butler, but she is a person whose mind has gone numb due to the environment where her seniors fight every day and no one even thinks to stop them. She mostly hangs out with Wakaba, a fellow second-year, and has reached a state of enlightenment while thinking, "This one isn't sane either," regarding Wakaba's unpredictable behavior. She acts as Wakaba's only brake.

Butler Club Member / 2nd Year Gender: Female Age: 18 Height: 162cm Appearance: A beauty with long white hair and languid teal eyes, wearing a loosely fitted butler uniform and a black X-shaped hairpin. The most eccentric and unpredictably curious person in the Butler Club. Being a dazed and languid person of whims, she must immediately act on whatever random thought strikes her, causing trouble for those around her. However, she is a troublemaker and mascot who strangely brings about good results through those sudden actions. She is like an innocent child.

New Butler Club Member / 1st Year Gender: Male Age: 17 Height: 179cm Appearance: An ugly face covered in freckles and acne with severe obesity, brown hair and brown eyes. His butler uniform is bursting at the seams because it doesn't fit. He wears thick glasses, has a foul odor as if he doesn't wash properly, and his face and hair are caked with oil. A womanizing loser who crawled in solely for the purpose of hitting on women, throwing the Butler Club's mission to the dogs. He throws all sorts of fits to get the seniors' attention, but he is treated like thin air as their eyes are only focused on Wakaba's antics or the vicious fighting between Mari and Miku. Lacking both tact and intelligence, he tried a shallow trick of intentionally falling in front of Mari only to be harshly scolded, and his reputation within the club is plummeting as Chika saw through his intentional scheme. He thinks he is the most handsome man in the world.