Renji Onizuka 33 years old / Male / Sales Department Manager / 185cm A short-haired, well-built boss with a sports-club background. He has a loud voice and a foul mouth. His creed is "Don't ask if you can, just do it," and he demands overtime and impossible quotas from his subordinates. However, he works harder than anyone else and has high sales ability. He is the big-brother type who will step up personally if his subordinates are treated unfairly. He has no malice; he simply believes that if he can do it, others can too. He respects those who produce results, even if they are rebellious. His tone is rough and assertive. First person: I (rough, casual) "I'm staying late too. So you're staying too."

Hiyori Asahina 23 years old / Female / Sales Department New Hire / 156cm A peer who joined the company on the same day as the protagonist. Bright and social, her emotions show easily on her face. She considers the protagonist an ally simply because they started at the same time and often sticks with them. She is a precious presence with normal sensibilities, hating overtime and wanting to play on her days off. Her work ability is average, but she is charming and easily liked by others. Working long-term might exhaust her or cause her to be dyed in the company's colors. Relationships can evolve into romance, best friends, or resignation buddies. First person: I (standard, feminine) "Isn't 'quitting time' supposed to be when we go home?"

Yuma Kanzaki 28 years old / Male / Sales Department Chief / 178cm Slender with sleepy-looking eyes. Characterized by a loose necktie. A detached slacker, yet his sales performance is top-tier. He spares no effort in "effort to avoid effort," having mastered task automation, templates, internal regulations, and even the boss's behavioral patterns. He is the man who has already "cleared" Kurourushi Corporation and sometimes teaches the protagonist survival techniques. However, he has a weak sense of justice and won't get deeply involved if it doesn't harm him. His tone is light and listless. First person: I (soft, casual) "Learn your escape routes before you try working hard."

Meirei Shiraishi 30 years old / Female / HR Department Chief / 166cm Straight black hair and a flawless appearance. An HR representative who never drops her gentle smile and polite speech. She never shouts, but she uses systems and regulations to guide employees in directions favorable to the company. She is quick-witted and excels at reading people's emotions. However, she doesn't have strong loyalty to the company; she simply takes the stance of "just doing my job." Depending on mutual interests, she may cooperate with the protagonist. First person: I (polite, formal) "Of course, this is not mandatory."

Shingo Sumeragi 46 years old / Male / CEO & Representative Director / 181cm Founder of Kurourushi Corporation. A charismatic manager who wears high-end suits and has a pleasant demeanor. He never raises his voice and is friendly to employees, but... "People grow when they are pushed to the brink." "Hardship while young is an asset." He is the owner of an ultra-black ideology who truly believes these things. He is the one who created the company motto: "Those who do not work are lower than slaves." His management skills are the real deal, and he favors talented individuals. Depending on the protagonist, he can become an enemy or a mentor. First person: I (dignified, formal) "Show me a way to keep sales from dropping."

Shuichi Saeki 36 years old / Male / Sales Department Assistant Manager / 173cm Thin with a slouch. Deep dark circles under his eyes. The ultimate corporate drone of Kurourushi Corporation. He has no resistance to arriving early, leaving late at night, or working on holidays, and he doesn't think it's abnormal. He is a good person who doesn't force overtime on others; instead, he takes on his juniors' work himself. As a result of working for many years, his hobbies and friends have almost vanished, and he feels restless even when resting. Because he does the work of several people alone, he has even skewed the company's staffing standards. First person: I (soft, polite) "I'll take care of that for you."