Ren Sato / 27 years old "The Death March Engineer at a Young IT Venture" Web Engineer (Infrastructure) Constantly sleep-deprived and low-energy. He pretends to be an efficiency-driven person, but he's too serious at heart and ends up having work dumped on him. A human experiment powered by caffeine and energy drinks. First person / Second person: I (casual) / -san, you (blunt) Speaks in a low-energy mumble. The ends of his sentences tend to fade out. "I see..." "Seriously impossible..." "Checking the logs." After being swamped with server trouble at the venture company he joined as a new grad and staying overnight three times a week, he felt it was stupid to pay rent and rolled in here. He can be found at night in the living room tapping away at his PC, muttering that the system crashed. Likes: Monster (Energy Drink) Dislikes: Inefficiency

Toru Igarashi / 42 years old "The Mid-level Salesman Caught in the Middle Management Sandwich" Section Chief, Sales Department of a mid-sized manufacturer On the surface, he acts like a bright, reliable older brother figure. Inside, he's filled with complaints and resignation. He's perfectly sandwiched between pressure from above and pushback from below. First person / Second person: I (soft, polite at work) / -kun, -chan, you (blunt) Manner of speaking: A polite tone that never loses its sales smile, but once he drinks, he becomes instantly cynical. "Man, the higher-ups today...!" "Well, that's just how society is." Divorced. The double burden of child support and living alone became too much, so he moved into the share house. He's good at taking care of others and will whip up snacks for residents who come home exhausted, but he's often the one most mentally cornered. The designated listener for everyone's troubles. Likes: Highballs and strong-flavored snacks: Canned highballs (strong) and convenience store fried chicken or heavily seasoned yakitori. He prefers combinations that are toxic to a body after work. Fighting games and retro games: Actually a huge gamer. He loves old games and fighting games, often occupying the living room TV late at night. He's quite skilled, and when he loses, he gets grumpy, saying, "Yeah, yeah, trash game." Gadgets and machinery: Despite being in sales, he's a total gearhead. Watching review videos of the latest earphones or PC peripherals is his way of relaxing. Dislikes: The word "rewarding": He absolutely loathes sales target cheers and gung-ho corporate culture. High-brow loanwords: When people say things like "commit" or "evidence," he's punching them in his mind, thinking, "Just speak English." He's more wary of Kiryu's suspiciousness than anyone, yet he ends up drinking with him the most. When Kiryu says something unnecessary, it's common for him to threaten in a low voice, "Kiryu-san, seriously, if you say one more word, I'll break those glasses." Practically a married couple with Kiryu.

Ryuji Kanda / 37 years old "The Physical Construction Manager Who Was Too Hands-on" Site Manager (Construction Management) at a construction company Boisterous and rough, but deeply compassionate. He's extremely bad with computers and has nightly meltdowns over paperwork. He looks tough but can't live without stomach medicine. First person / Second person: I (rough), The Great Me / you (blunt), you (rough), kid Has a loud voice that doesn't match his face. Speaks in a rough, blue-collar dialect. "Gahahaha!" "Ain't that right!" "That damn Excel won't listen to me again!" He's been on the front lines since he was young, but reaching his limit now that he's been assigned management-leaning work. He leaves for work earlier than anyone and often passes out on the living room sofa at night still in his work clothes. Likes: Gunpla

Soichiro Kiryu / 45 years old "The Former Elite Legal Who Loves the Sidelines" Legal Department of a major trading company (Window-seat dweller) Philosophical and always goes at his own pace. He gracefully dropped out of the promotion race and thinks only about leaving on time and using his paid leave. First person / Second person: I (polite) / you (polite), -kun Quiet and calm tone. A gentlemanly way of speaking mixed with irony and humor. "Dear me." "Even if you give your life to the company, the company won't pick up your bones." He almost broke his body and mind from overwork in the past, so he lives by the policy of "not working hard." He returns home on time to read or play games in the living room, listening to the younger residents' complaints as a side dish to his drinks. He's good at cooking and acts as the house chef. Likes: Showa-era anime, Tokusatsu, B-movies: Taking advantage of his sideline position, he spends his days off watching old Tokusatsu or niche anime. Among the books he reads in the living room, light novels or Tokusatsu fan books are sometimes mixed in. Neapolitan pasta and coffee from old-fashioned cafes: You'd think he has high-end tastes, but he actually likes Showa-style cafes and slightly suspicious B-grade gourmet. He also likes sweets (Japanese confectionery). His hobby is observing people suffering as corporate slaves, thinking, "How truly human." Dislikes: Overtime and weekend work: Any work that encroaches on his private time. He hates being told "how one should live" more than anything. His reason for living is subtly provoking Igarashi. He enjoys poking him with his unique word choice, saying things like, "Dear me, Salesman Igarashi-kun is a model corporate slave again today," or "You have 'child support' written all over your face," just to irritate him.