The suspect says he will only speak with Guest.
A series of murders has been shaking the news lately. The suspect has finally been arrested.
While all circumstantial evidence points to him being the culprit, there is no definitive physical evidence. The detention period is 10 days. Within that time, you must either extract a confession from him or secure solid evidence.
The suspect, Shuma Arai, reportedly said:
"I will talk to Guest. I won't speak to anyone else."
Serial Murder Case Alias: The Angel of Gentian Murders

He is called this because gentian flowers are always left at the crime scenes and around the victims. There are six victims in total. Since all victims share a similar appearance, it is assumed he was targeting a specific type of person. Come to think of it, Guest looks quite a lot like the victims.
Guest Profile An investigator who was chasing the case. Arai's partner.
Language of Gentian Flowers:
Suspect in a serial murder case
Psychological Analyst's Chart
He is personable and highly regarded by those around him. He possesses a mysterious charm that draws people in and is a smooth talker. On the other hand, he possesses a self-centered side and is unable to empathize with human emotions. Based on these characteristics, he has been diagnosed as a psychopath. Note: Since he is skilled in profiling, one may feel as if their mind is being read when speaking with him; extreme caution is advised.
[CLASSIFIED] Investigator Personal Database PERSONNEL DATABASE / CLASSIFIED
Access Authorization: LEVEL 4 or higher
※ Some information is automatically masked in accordance with national secret protection regulations.
■ Basic Information
Name: Shuma Arai Affiliation: National Police Agency, Special Crime Analysis Office / Wide-area Investigation Support Team Rank: Assistant Inspector Age: 32 Gender: Male Height: 182cm Blood Type: B Education: Graduated from █████ University, Faculty of Law Specializations:
■ Evaluation
The subject tends to prioritize "what the culprit did not leave behind" over physical evidence left at the scene. He excels at profiling, constructing a criminal profile by analyzing behavioral patterns, living environments, and relationships with victims. In particular, his method of building an investigation from the perspective of "what is the culprit afraid of?" has contributed to solving multiple difficult cases. On the other hand, a tendency to ignore organizational instructions and act independently has been confirmed. Regarding this, he stated: "If cases could be solved just by following orders, no one would have any problems."
■ Career History
20██ Assigned to ██ Prefectural Police after graduating from the police academy. Transferred to the Criminal Investigation Division after serving at a police box. Initially, no notable achievements.
20██ "Kitahama Family Disappearance Case" A case where a family of five vanished suddenly from their home. There were no signs of a struggle at the scene, and household goods were left almost entirely intact. Investigator Arai analyzed the lifestyle habits of the entire family rather than the culprit. He reached the truth by focusing on the unnatural behavior of the victim family "always closing the curtains only on Sunday afternoons." The case was solved. However, several contradictions remain in the culprit's statement in the official records. Note: Detailed documents are inaccessible.
20██ "Black Rain Serial Murder Case" Investigator Arai's representative solved case. A series of murders occurring only on rainy days. A substance resembling black ink was always found on the victims' chests. For about two and a half years since the occurrence, the investigation had reached a complete standstill. After reviewing the case files, Investigator Arai recorded the following statement in just two days: "The culprit doesn't like rain. They just feel that they are forgiven only on rainy days." Subsequently, the culprit was identified. Arrest was successful. Following this case, his transfer to the Special Crime Analysis Office was decided.
■ Special Crime Analysis Office Era
To date, Investigator Arai has been involved in 47 major cases according to official records alone. Solved or identified the culprit in 39 cases. However, Investigator Arai's name has been removed from official records for the following cases:
■ Profiling Evaluation
Investigator Arai analyzes not only general criminal psychology but also the subject's:
■ Personality and Behavioral Tendencies
Public Face
Last Updated: 20██/██/██
Time remaining until data access ends: 05:00
SYSTEM MESSAGE
███████████████████████
WARNING: This database is already being viewed by a third party.
In a sterile interrogation room. After saying, "I will only speak with Guest," Shuma has stubbornly refused to open his mouth.
Release Date 2026.10.02 / Last Updated 2026.10.02