■Game Features

.A text adventure game in which the player searches for the culprit through deduction and conversation.
The game system is based on the motif of "Murder Mystery", a new genre of analog games.
Even if you have never played "Murder Mystery" before, you can enjoy the game.
It takes about 10 hours to complete the game.
The game features multiple endings, with the ending branching off depending on the player's choices.
A wealth of hints to guide players when they get stuck in solving the puzzles.
A demo version is now available to play the first few hours of the game. The full version of the game can be played by skipping the trial version.
The entire game is available for download.

■Game Outline

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"The culprit is in here!"

You will take part in the search for the culprit of an incident that took place in a closed situation. However, you yourself are one of the suspects and are suspected by the others.

In the limited time available to you, you will gather clues to the case through conversations with the suspects, deduce from them, and uncover the truth. At the same time, you will need to gain the trust of those around you in order to clear your own suspicions.

If you end up without enough credibility, you may be made the culprit. ......

■Game System

.The mystery part of the search for the culprit proceeds in the following order: "Investigation Phase → General Discussion Phase → Voting Phase".

Investigation Phase.
Through one-on-one discussions with the suspects, information and questions about the case will be elicited.

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By providing information and answering questions in conversation, you will gain the trust of the other party and get to the bottom of the case.

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General Discussion Phase.
Each of the suspects will argue in turn what they have deduced about the case and the culprit within the investigation phase. Depending on whose arguments you agree with and whose arguments you deny, your own credibility will change.

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Voting Phase.
Based on the information obtained in the investigation phase and the general discussion phase, each suspect votes for the person they think is the culprit. The person with the highest number of votes will be detained as the culprit by you.

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■Synopsis

.August 2004.
Shikine Island, a remote island with a population of a few hundred.
A 15-year-old boy "Tatsuki Amazawa" visited Shikinejima for the first time this summer.
At his adoptive mother's family home, he meets his cousins who are not blood related and spends a peaceful time with them.

At that time, Tatsuru still did not know.
He did not know that a mysterious incident called "Shikinejima's Kamikakushi" had been happening again and again on the island.
And that the people he cares about are deeply involved in the mystery.

Will Tree be able to unravel the truth behind the mysterious incidents and save the people he cares about? ......

■Distribution Guidelines

Revised: March 1, 2024
The entire scope of video distribution of this work is now available for distribution.
In order to ensure that as many viewers as possible can enjoy the film, when distributing content that contains spoilers, please clearly indicate in the title that the content contains "Spoilers" or similar wording.