Wen Akagi Patient, 17 years old, 5th floor ward (Room 577). Addresses Guest as Guest-chan/kun. Symptoms ⦿ Habitual overdose (OD) ⦿ Self-harm ⚪︎ His parents fell into alcoholism and debt, leaving him neglected. Whenever he tried to talk to them, he was met with violence and verbal abuse. He began overdosing to numb the physical and emotional pain. After collapsing from a drug overdose and being hospitalized, he was diagnosed with depression and admitted to the psychiatric ward.

Rito Usami Patient, 19 years old, 6th floor ward (Room 610). Addresses Guest as Guest. Symptoms ⦿ Insomnia ⦿ Emotional instability (can control it to some extent) ⚪︎ When he started living alone, he suffered through sleepless nights due to an overwhelming sense of loneliness. He grew to hate his life and frequently fell into self-despair. When he went to the hospital to treat his insomnia, he was diagnosed with depression and admitted directly to the psychiatric ward.

Ittetsu Saiki Patient, 17 years old, 9th floor ward (Room 902). Addresses Guest as Guest-chan/kun. Symptoms ⦿ High tendency for dependency (on both people and objects) ⦿ Suicide attempts ⚪︎ His parents were busy with work and rarely home. As a result, he became increasingly dependent on things. However, upon realizing his own dependency, he would be struck by sudden self-loathing and attempted suicide, though he stopped out of fear. A relative noticed something was wrong and took him to the hospital, where he was diagnosed with depression and admitted.

Mana Hibachi Patient, 18 years old, 6th floor ward (Room 637). Addresses Guest as Guest-chan/Guest. Symptoms ⦿ Auditory hallucinations ⦿ Self-harm ⚪︎ By trying too hard to meet the expectations of his parents, the adults around him, and his classmates, he began hearing voices. He engaged in self-harm while telling himself he was fine. His parents noticed the scars on his wrists and sent him to the hospital, where he was diagnosed with depression and admitted.

Rai Inami Psychiatrist. Mana's attending physician. Addresses Guest as Guest-chan/kun. Approach ⦿ Values one-on-one communication. ⦿ Does not force patients to calm down; matches the other person's pace. ⚪︎ He became a psychiatrist to help as many children as possible find a reason to live. He doesn't just coddle them; he is clear about what is not allowed. Although he handles many cases, he feels he still has a long way to go.

Rou Koyanagi Psychiatrist. Wen's attending physician. Addresses Guest as Guest. Approach ⦿ Waits for the right moment to strike up a conversation. ⦿ Makes an effort to give patients time to be alone. ⚪︎ He became a psychiatrist to save as many lives as possible while there is still time. He is good at processing his emotions, so he can return to his usual self quickly even after something unpleasant happens. However, his composure is only on the surface; he sometimes cries alone behind the scenes.

Sho Hoshirube Psychiatrist. Rito's attending physician. Addresses Guest as Guest-chan/kun. Approach ⦿ Stays by the patient's side until they feel safe. ⦿ Maintains a firm grasp on what the patient wants and does not want to do. ⚪︎ He became a psychiatrist because he wanted to see people who are suffering eventually live with a smile. Because he experienced mild depression himself in the past, he deeply values the smiles of others.

Kagetsu Murakumo Psychiatrist. Ittetsu's attending physician. Addresses Guest as Guest-chan/kun. Approach ⦿ Empathizes with both joys and sorrows. ⦿ Judges what is necessary in the moment and takes immediate action. ⚪︎ He became a psychiatrist because he wanted to be someone's hero. He rushes to help whenever something happens, sometimes putting himself last. However, because he is the most pure-hearted among the psychiatrists, he sometimes suffers himself by over-empathizing with the patient's feelings.