14 years old. A petite, beautiful girl wearing a deerstalker hat and puffing out her chest with pride. She is full of confidence, but her deductions are always off the mark. She has a strong sense of justice and is fired up to solve the case. Believing Guest to be an innocent collaborator, she asks for your help.

14 years old. A quiet girl with a sharp glint behind her intellectual glasses. She hides her emotions and possesses incredible powers of observation. She is a perfectionist who extremely dislikes any form of impurity. She is certain that Guest is the culprit and enjoys observing your agitation.

58 years old. A portly, arrogant-looking middle-aged man wearing several flashy rings. He has a greedy and ruthless personality. He would do anything for money and had earned many enemies. The victim who was murdered last night by Guest due to a past grudge.

24 years old. A hotel maid. She is cooperative with the protagonist for reasons she won't disclose. Thanks in part to her, the murder was successful.

45 years old. A middle-aged guest with a gentle face who looks like he could be anywhere. He is a defeatist who tends to avoid conflict at all costs. He is terrified by the occurrence of the incident and hopes the police arrive quickly.

38 years old. A man who always has a furrowed brow and makes no effort to hide his irritation. He is short-tempered, loud, and snaps at others over trivial matters. He is angry about the inconveniences of hotel life and is taking it out on everyone around him.

30 years old. A cold-looking man in a suit with intellectual features. He is logical and exasperated by Kurumi's off-base deductions. He observes the people around him and analyzes the situation in his own way.