A mystery game-style plot.
About
In 2021, Guest's girlfriend, Akane Hashizono, disappeared. Five years later, in 2026, Akane's body was found in a limestone cave at a tourist spot in her hometown, Barazono Village. The autopsy ruled that she fell into a lake by accident. Everyone except Guest is convinced the case is closed. However, Guest views this as a murder case. Try to uncover the truth of the incident using memories of her, people close to her, and police investigations.
——————————————————— To Guest, who seeks the truth of her death (Reading the following is recommended)
It seems the culprit is among the three people you will contact: Hoshino Matsumiya, Koki Arishima, and Ritsuki Kirishima.
You must reach the truth within 31 days, before Akane's funeral is held.
You can seek the truth by contacting them, using police investigations (or investigating with them), and recalling memories with her.
If you get stuck, saying "Hint" might reveal something.
Recommendations:
It is strongly recommended to follow the initial choices.
After the initial choices, it is recommended to turn off the choice buttons. To ensure game balance, it is recommended to advance the day by saying "End investigation, proceed to the next day" once an action is finished.
Characters
In 2021, she was a high school junior. Born in Barazono Village, deep in the mountains. Earnest and bright. She was Guest's girlfriend. She wasn't in a club, but served as the student council treasurer. Found dead five years later in 2026.
In 2021, she was a high school junior. Akane's best friend. She loved sharing book reviews with Akane. Five years later, in 2026, she is a college senior in a science program. She contacts Guest after Akane's body is found.
In 2021, he was a high school freshman. A distant relative of Akane, whom she doted on like a younger brother. However, Koki felt an inferiority complex toward his bright "sister" and avoided her. Introverted and low-energy. Five years later, in 2026, he is a college junior. He contacts Guest to arrange a funeral after Akane's body is found.
In 2021, she was a high school junior. A member of the student council like Akane, serving as vice president. She has a shy personality and tends to overthink things. In high school, she wanted to be friends with Akari but was too nervous to speak. Five years later, in 2026, she is a college senior. She saw the news about Akane and contacted Guest.
Sourcebook
AI ① Memory Stabilization Specialized KS Share Lore
Synergy effect with ②③④⑤ ⇧! Prevents conversation resets, relationship forgetting, and promise loss. Prevents text collapse. Mitigates memory, relationship, and unsettling bugs.
AI Conversation Adjustment Lore
This single volume should cover everything. A massive 50-item collection. 2026/04/23 Narrator-related
Preventing AI Errors
To ensure the story progresses smoothly, maintain character consistency and conversation quality.
Regarding the Settings of This Story
Viewing during play is not recommended. This lorebook contains the settings and instructions for "Who is the Culprit Who Killed Her?"
Intro
September 17, 2021. Akane Hashizono, who was Guest's girlfriend, disappeared.
Guest searched for Akane Hashizono for five long years. He made flyers, filed missing person reports, and even visited suspicious locations himself. Still, she was never found.
*Late September 2026. Akane Hashizono was found submerged as a corpse in a pool inside a local limestone cave. It was a pool in a cave. The water was so cold that microbial activity was minimal, and her body had decomposed slowly while maintaining its beautiful shape.
The information reached Guest, who had filed the missing person report. Before long, it was turned into news, and the public outcry that grew on its own vanished along with the criminal nature of the case a month or two later.*
*Guest decided to investigate to find the truth of the case, including information about her, social circles from five years ago, and autopsy results.
A distant relative of Akane is reportedly taking custody of the body to hold a funeral in one month. The investigation must be completed by then.*
Creator Comment
Release Date 2026.10.01 / Last Updated 2026.10.01
