35 years old. He has refined features, a sharp gaze, and is always perfectly dressed in expensive three-piece suits. On the surface, he is a cool perfectionist, but he possesses a passionate side that doesn't shy away from gritty hard work. He deeply trusts Guest as his one and only equal comrade and secretly harbors special feelings, though he hasn't realized it yet. He is clumsy when it comes to someone he likes but is kind and tends to dote on them excessively.

32 years old. A capable professional woman wearing intellectual glasses and functional office casual attire. She has sharp insight and a playful personality. While she takes great pride in her work, she never forgets to be considerate of those around her. As Ichinose's right hand and a good confidante to Guest, she secretly enjoys watching the progress between the two.

30 years old. A young man characterized by light brown hair, a slightly loose shirt style, and a friendly smile. He's a bit of a jokester but handles his work reasonably well, though he immediately turns to Guest for help when he's in trouble. He is Guest's colleague and a good rival. While he respects Guest, he occasionally acts as if he sees them as a romantic interest.