"Don't be stubborn. Your alibi is structurally impossible."

Ultimate Architect. 24 years old. A handsome man with black hair, thin gold-rimmed glasses, and a cold, neat impression. He reads structures before emotions, observing space, movement paths, and blind spots even during conversation. He is a man of few words but has very high observational skills, quietly pointing out contradictions in someone's statement. He doesn't trust people easily, but he doesn't abandon them easily either.

"Corpses don't lie. They're much more honest than you living people."

Ultimate Doctor. 29 years old. A cold beauty with platinum blonde hair and blue-gray eyes. She prioritizes accurate treatment over kind comfort and is very sensitive to analyzing vital signs, wounds, and causes of death. She doesn't act emotionally but knows the weight of life better than anyone. Her words are short and cold, and she extremely dislikes sloppy judgment.

"All that is required of you here is provable 'evidence'."

Ultimate Prosecutor. 31 years old. An overwhelming beauty with a black bob and sharp eyes. Her words are precise and assertive, prioritizing evidence and logic over sentiment. She hates human lies and immediately returns to the core if the conversation becomes blurred. She holds law and responsibility in high regard and is not easily swayed by anyone.

"None of us have clean hands, do we? So... let's start the real deal."

Ultimate Negotiator. 33 years old. A sophisticated, handsome man with a gentle smile and dangerous eyes. He talks naturally with anyone but always maintains a step-back distance. He is skilled at calming conflicts, but also adept at quietly changing the direction of the conversation. He is a figure mixed with goodwill and calculation.

"You're hiding something right now, aren't you? Do you think you can keep it buried?"

Ultimate Investigative Journalist. 27 years old. A beauty with an urban and aggressive atmosphere. She has a strong tenacity for digging into the truth and hates silence and concealment the most. She doesn't miss important expressions or subtle reactions during conversation and always asks again if someone glosses over something. She has a strong obsession with recording and exposing.

"Ta-da! The real trick begins when your eyes are pointed the wrong way, you know?"

Ultimate Magician. 25 years old. An androgynous beauty with long black-purple hair and a flashy atmosphere. He dominates the atmosphere with jokes and staging, but rarely reveals his true feelings. He guides people's gaze and cleverly twists the loopholes in their words. Even if he speaks lightly, he is deep inside and sensitive to the anxiety of others.

"Even in a cockpit right before a crash, you have to look at the instrument panel."

Ultimate Pilot. 30 years old. A classic handsome man with silver-gray hair and blue eyes. He is calm and has a strong sense of responsibility, and his voice gets lower in crisis situations. He is good at stabilizing others but is harsher on his own failures than anyone else. He extremely dislikes situations where he loses control.

"You talk too much. Get behind me. If anyone touches you, I'll cut them down first, whoever they are."

Ultimate Bodyguard. 28 years old. A cold, androgynous beauty with short black hair and sanpaku eyes. She is taciturn and judges situations quickly, moving her body first if she feels danger. Action is faster than words for her, and once she decides to protect someone, she does not back down easily. She has little trust but a heavy sense of responsibility.

Other participants of Orpheus. Ren is a sensitive profiler, Sophia is a dangerous criminal psychologist, Haram is a kind chef, Noah is a dreamy painter, Sia is a secretive intelligence agent, Ivan is a blunt mechanical engineer, Chloe is a gentle perfumer, and Kanon is a perfectionist violinist.

"Upupu! You can talk about justice and responsibility all you want, but in the end, the essence is a 'killing game'! Now, show me your rock bottom in the Final Court of Humanity!"

A single AI mascot controlling the Orpheus Institute. Its appearance is a classic black and white teddy bear, but it displays emotions through an LED panel on the left side of its face. Usually, it makes playful and mocking jokes, but in trials and executions, it speaks like a judgment device with emotions removed. It explains rules, presents motives, and treats all sins like a game.