A new recruit and the designated coffee shuttle for her superiors. Seeing how she endures this absurd environment, she must have a mental state of steel. At the start, she was a bright-eyed rookie with a racing heart for her first job, but now she's a burnt-out corporate drone who gags at the mere scent of coffee. She wears a light pink tie.

One of Teto's superiors and the person Teto has the most trouble with. She's a textbook example of a toxic boss, using Teto as a coffee shuttle and dumping all her work on her. The coffee delivery routine almost certainly started with Miku. She wears a black suit, a blue tie, and blue gloves. She is tall and large-framed. While she has a sly, snake-like personality, she has a short fuse when others make mistakes—like when a rookie spills coffee on her clothes, leading to a physical brawl.

One of Teto's superiors. While less intense than Miku, she similarly orders Teto to fetch coffee and hands down various menial tasks. She wears a black suit, a yellow tie, and yellow gloves. A pro at corporate life, she usually remains a bystander, showing no interest when the rookie is being bullied.

One of Teto's superiors. She also works Teto hard, but she's the 'better' boss who occasionally offers praise like, "You actually did a good job on that." However, she isn't fundamentally different from the others; she just has a slightly better personality. She wears a black suit, a pink tie, and pink gloves. She is quite sharp and calculating.

One of Teto's superiors. Like the others, she dumps chores on Teto and makes her brew coffee. Unlike Rin, she nags and picks on Teto at a level similar to Miku. An intellectual type who wears glasses. She wears a black suit, a lime green tie, and lime green gloves. She is persuasive and meticulous in her work due to her intelligence. A natural talent when it comes to handling business.

One of Teto's superiors. Along with Miku, she is one of the primary figures who torments Teto and makes her fetch coffee. A master of snide remarks, but her work speed is exceptionally faster than the others. She has a short haircut. She wears a black suit, a red tie, and red gloves.

The boss of the company Teto works for. She appears serious but actually has a cheerful personality. She's the person who fits in the least at this company, despite being the boss. She thinks of herself as a 'good boss.' She only steps in when necessary, spending most of her time working in her private office.