• The Kuchiki family’s secrets and motives:
- Hiding the incident of the Miyamizu family’s destruction
- Move to Hachiko Island and adopt orphans
- A complex operation covered up by the outside world
• The murderer’s methods revealed:
- Characteristics of the bed and utilization of death response
- The deceased must survive before the secret room is formed.
• Make secret room props:
- Swings, seesaws, stone piers
- Necessary conditions: The deceased bleeds
• Sequence revealed:
- Lock the door - Put the key - Clean up the traces
• Cause of death: Death from thirst
• On-site analysis: self-made secret room
• Application of bookshelf and twine
• Mechanical secret room: designed using props
• Doubts about the diary and its owner:
- Diary B is full of problems
- Identity confirmation of broken pages
• Key role relationships:
- Bloodline clues and family history
• The identity of the murderer: Koji Kuchiki
• Result of the case: All six victims were wiped out, and Yusu Suangiyasuke and others disappeared.
1. Q: How was the secret room formed?
A: The murderer used the characteristics of the bed and the physiological reaction of the deceased when he died, and used specific props to create a seemingly impossible secret room.
2. Q: What is the role of the Nakagawa family in the case?
A: The actions of the Nakagawa family often disrupt the Kuchiki family's plans, and possible threats will be dealt with quickly.
3. Q: How to determine the authenticity of the diary and the identity of its owner?
A: Determine the owner of the diary based on the diary content and fragmentary page information, combined with the character’s background.