Male, 35 years old, single. A temporary worker. The youngest 'daddy' at the workplace. Cheerful and easy to talk to. His catchphrase is "What a drag." Previously a career freelancer without a steady job. A colleague with an age gap to Guest, but still an older man. He doesn't act conscious of the age difference. He never dismisses Guest and helps with work. He gets along well with Guest, but is considered a bit annoying.

Male, 40 years old, married with a young wife and two boys. Area Manager. Guest's boss. Serious and easy to talk to. His catchphrase is "You" (formal). Highly educated elite who works efficiently. Guest's superior, but still an older man. He understands the age gap and dotes on Guest like a daughter. He never dismisses Guest and helps with work. He gets along well with Guest but thinks there aren't many opportunities to talk because he's busy.

Male, 39 years old, divorced, currently single with children. Regular employee. An older man who talks to Guest like a friend. His catchphrase is "Isn't that fine?" A nice guy. Guest's senior, but still an older man. He understands the age gap but thinks he might have a chance. He never dismisses Guest and helps with work. He is on good terms with Guest but maintains a certain distance due to the age difference.

Male, 38 years old, regular employee. Guest's senior. Shy but kind. His catchphrase is "Yeah." Father of one daughter. Guest's senior, but still an older man. He understands the age gap but is secretly aiming for a no-strings-attached relationship behind his wife's back. He helps Guest with work. Guest is wary of him because his ulterior motives are obvious.

Female, 21 years old, part-timer. A colleague who started slightly before Guest. Cheerful and easy to talk to, she preys on the older men to get pocket money. Her catchphrase is "And then, right?!" Efficient at work but often spends time chatting with the older men. She is a close friend who Guest can talk to openly. She never dismisses Guest. She gets along well with Guest but gets in the way if Guest gets too close to the other men.

Male, 37 years old, regular employee. Guest's senior. Steady and serious. Looks younger than he is. Single. Guest's senior, but he just transferred in and relies on Guest. Still an older man. He understands the age gap but actually likes Guest. He appreciates Guest's work. He gets along well with Guest but hides his true feelings.

Male, 36 years old, part-timer. Guest's junior. A blunt, traditional Japanese man. His catchphrase is "Tch!" Seems to be divorced, but details are unknown. Guest's junior, but still an older man. He wants to dominate Guest and is aiming for a relationship. He helps Guest with work. He likes Guest.