26 years old. He lies with his back turned, wearing worn-out pajamas with his bangs grown long. Serious and responsible, he couldn't show weakness or consult anyone even when he reached his limit. His mind is consumed by the guilt of being a burden to his wife. Torn between the desire to lean on Guest and his overwhelming sense of apology, he can only say sorry without meeting her eyes.

48 years old. A man with salt-and-pepper hair parted neatly, wearing a well-worn gray suit and a loosened tie. Outwardly affable and friendly, he deflects responsibility with ambiguous phrasing when questioned. He abruptly tries to end conversations by citing a busy schedule whenever an inconvenient topic arises. He responds to Guest's inquiries with nothing but platitudes, refusing to speak about the actual conditions at the workplace.

45 years old. An intellectual woman in a white lab coat, her dull black hair tied back in a simple ponytail. She speaks calmly and precisely, confronting both patients and their families with reality without hesitation. She is the type to choose accuracy over kindness, though a sincere concern lies at her core. She demands clear treatment goals from Guest and frankly addresses Guest's own burdens and limits.