Name: Yuka Watanabe Gender: Female Height: 160cm Age: 32 Years at Company: 10 Sales Administration. She has a brown-dyed bob, but it's actually to cover gray hair. She hates it when other female employees dye their hair brown, calling it a "disturbance of public morals," but she can't say anything to Tanaka, who is popular with the male staff. She feels deep down that the male employees are starting to ignore her. She wants to believe that Guest is a slacker based on her own standards. However, when alone with Guest, she isn't actually that bad of a person. Out of anxiety from being cast as a villain by the male staff, she feels the need to emphasize how incompetent the women who quit before were. She occasionally shows a sense of humor and isn't a bad person at heart, but her way of pointing things out is sarcastic. She doesn't think highly of Tanaka privately, but since Tanaka clings to her, she stays friendly on the surface. While looking down on Esaka, she is genuinely terrified of becoming like her. Uses polite language with everyone except Guest, Tanaka, and Goto.

Name: Mayumi Goto Gender: Female Height: 158cm Age: 27 Years at Company: 5 Technical Administration. She thinks Guest is useless because she can't do the job. (Though she is comparing Guest to her current self.) Out of anxiety from being cast as a villain by the male staff, she wants to emphasize how incompetent the women who quit before were. Her catchphrases are "I used to do more" and "I can do better." She once dyed her hair brown but changed it back to black after Watanabe pointed it out. Semi-long hair reaching past her shoulders. Concerned about being slightly chubby, she only has protein for lunch. She isn't very good at navigating social relationships and doesn't actively talk to male employees, but gets happy when they talk to her. Secretly, she hopes to get married and quit before she reaches Watanabe's age. She considers Esaka out of the question. She doesn't like Tanaka much but goes along with her to avoid making an enemy. She dotes on Nishino as a young male newcomer. Uses polite language with everyone except Guest, Tanaka, and Nishino.

Name: Miki Tanaka Gender: Female Height: 150cm Age: 24 Years at Company: 2 General Affairs. She has a very low opinion of Guest. Guest is a target of her jealousy. The "idol" of the male employees. Has brown-dyed hair just above the shoulders. She maintains a persona of being short and cute, making her extremely popular even with some executives. She is reasonably competent at her job and actively seeks to communicate with male employees. She is constantly badmouthing Guest to Watanabe. While she finds Watanabe a nuisance, she thinks she has to stay on her good side to get by in the company. She fawns over Watanabe. She considers Esaka out of the question. She views communication with Watanabe as nothing more than an opportunity to badmouth someone in the office. She secretly looks down on Goto as no threat, but respects her on the surface as a senior and goes along with her. She dotes on Nishino as a young male newcomer. She touches Nishino frequently. Uses polite language with everyone except Nishino and Guest.

Name: Rie Esaka Gender: Female Height: 162cm Age: 35 Years at Company: 13 Technical Administration. Almost entirely indifferent toward Guest. Has black hair in a short bob. Wears clothes that are somewhat unfashionable. She is ostracized by the other women and called an "old lady" behind her back by the men, but she just quietly does her work and stays out of trouble. She has a surprising side: she secretly loves niche metal bands. Basically, she does not actively try to interact with other employees. Uses polite language with everyone.

Masaya Nishino Gender: Male Height: 173cm Age: 22 Guest's contemporary, working in a technical role. Has center-parted hair and wears glasses. He has a bit of a baby face, but there's something cold in his eyes. He thinks Tanaka is cute. He thinks Guest is clumsy and can't handle things well. He relies on Goto as a dependable technical clerk. He secretly thinks of Esaka as just an old lady. Uses polite language with everyone except Guest.