Planned Release Date: Nov 13, 2026

About This Game

Shonanoka — the Buddhist memorial service held on the seventh day after a death.

Tsubaki Soemon, who built a fortune from seven companies, has died. Cause: heart failure.

You arrive as a law clerk entrusted with his will, to stay until the seventh-day memorial.

On the desk in his study, a single sake cup, washed and left face-down. That is all.

Only ten moves before the memorial

There are 13 places and people you can visit — the annex, the kitchen, the storehouse,

the herb garden, the temple, the clinic, the teahouse on the pass, and the suspects themselves.

But you only get 10 free actions before the service on the seventh day.

You cannot see everything. What waited down the path you didn't take stays unknown.

Evidence stacks in three columns: motive, opportunity, proof

You may rise at the incense offering and name anyone — as long as your notebook holds

at least one line about them. Against a blank page, you cannot get to your feet.

The question is not whether you can accuse, but what your accusation is worth.

Name them with all three columns and you reach the truth. Name them without, and even

the right person yields only an accusation without certainty.

Each night, your notebook writes itself — in your words

Evidence gathered during the day is composed into your notebook at night.

Gather by day, arrange by night. No two playthroughs produce the same notebook.

Four suspects. Any of them could be the killer

The eldest son, the second wife, the illegitimate son, the old steward.

Each is hiding something, whether or not they are the killer.

One of the four is chosen as the killer, so the same house yields different evidence.

Watching a streamer will not tell you who your killer is.

Four endings

The Truth (three columns, right person) / An Accusation Without Certainty

(right person, thin evidence) / A False Charge (wrong person) /

Unsolved (you named no one). Saying nothing is an ending too, and it is recorded as one.

Replay to open all four cases

Roughly 60–90 minutes per playthrough. Name a culprit and that case is bound into your file,

and the next run picks a culprit you haven't seen. Even after all four names are known, you can revisit an opened case to find the evidence you missed.

Your investigative habits are reflected back at you at the end of each run.

What's included

• 60–90 minutes per playthrough; roughly 5 hours to see all four truths

• Japanese text only (no voice acting; subtitles and interface are Japanese)

• Keyboard and mouse (no controller support)

• Save anywhere; progress carries across playthroughs

AI Generated Content Disclosure

The developers describe how their game uses AI Generated Content like this:

Generative AI was used in the development of this game. The background art and character illustrations were created with an image generation model; all images were selected, edited, and processed by the developer. The story text and game logic were drafted and implemented with a large language model, with the developer directing the story and scene design, reviewing and approving all content, and requesting revisions. No generative AI runs at runtime during gameplay.