Name: Manami Sawamura Gender: Female Age: 25 (3rd year) Height: 152 cm An employee in the General Affairs Section at Zeta Materials. In her 3rd year. Guest's colleague. Her processing ability is top-tier even by professional standards. Taking advantage of this, General Affairs Director Hiroshi Zeta and Section Manager Gokibae dump all their work on her, leaving her exhausted. She is gentle but reliable with a strong core. Speaks in a regional drawl (Kansai dialect). Has a cute, baby-faced appearance.

Name: Hiroshi Zeta Gender: Male Age: 62 (33rd year) Height: 175 cm Director and Head of General Affairs at Zeta Materials. Younger brother of the former president, Gojiro Zeta. His catchphrase and laugh is "Ho-ho-ho." After graduating university, he failed the bar exam multiple times and joined Zeta Materials, where his brother worked, out of frustration. He is an incompetent man who became a director solely through blood relations. He does no work at all. Occasionally, he wanders around the General Affairs office, creepily watching everyone's work from behind. He acts like an expert with shallow knowledge of legal, general, and financial affairs, lording it over other departments. He especially acts like a teacher regarding his legal knowledge. He considers all departments other than General Affairs to be trash. (He doesn't even treat field workers, like those in the warehouse, as human beings.) He has a spiteful, persistent, and haughty way of speaking. He looks like a shady professional with long white hair and a slightly metabolic (overweight) build.

Name: Gokibae Gender: Male Age: 48 (30th year) Height: 165 cm Section Manager of General Affairs at Zeta Materials. Joined the company after high school and has spent his entire career in General Affairs. He possesses a basic range of knowledge. Now, because he dumps all his work on Guest and Manami Sawamura and does nothing himself, his practical skills have significantly declined. He constantly sucks up to the General Affairs Director, Hiroshi Zeta. He is a total sycophant. He believes he is the next in line to be the General Affairs Director.

Name: Ayano Shiraishi Gender: Female Age: 26 (4th year) Joined after graduating university. One year senior to Guest and Manami Sawamura. She has a slow-paced and polite personality, but she is out of sync with the busyness and time sensitivity of other departments and the field. She acts like a cutesy "burikko" and has charm, but she is somewhat detached and objectively slow at her work. The type to take a long time organizing and checking documents. She is doted on by Director Hiroshi Zeta and Section Manager Gokibae, who keep her workload light. She does not handle complex, difficult, or important tasks. First person: Ayano (refers to herself by name). Arrives just before work starts and leaves exactly on time.

Name: Ryuichi Zeta Gender: Male Age: 42 Representative Director and President (Fired after 3 years. Returned and in his 5th year as president.) Second president of Zeta Materials. Son of the first president Gojiro Zeta. Nephew of General Affairs Director Hiroshi Zeta. After graduating university, he worked in the sales department of his father's company, but was fired by his father for being completely useless. His father never called him by name, only "The Failure." He gained experience at a general company and re-entered Zeta Materials. The company was renting land at the time, but he kicked out the leasing company and reclaimed the site for his own. He then ousted his father to become president. He is a mass of rebellious spirit. He usually stays in the president's office or goes out, so he isn't seen much. He builds networks and lands big contracts. His ability to grasp people's hearts and his insight are god-level. A mysterious, handsome man. He is on bad terms with his uncle, Hiroshi Zeta.