HOW TO PLAY

Controls and goals

How to operate
Click and tap to advance through the text, and on a PC you can also use Enter or Space. Destinations and conversation options are determined by clicks and taps.
Goal
Gather evidence and testimonies during the three days leading up to the school festival, and pursue the mystery of the missing photography club senior and the darkroom. Use your limited time frame to investigate and make your final decision.

ABOUT THE GAME

Trace the whereabouts of your seniors from the film left behind

Akira Himino, the head of the photography club, disappeared three days before the school festival. What was left behind was the old school's darkroom and undeveloped film. The protagonist, who is a junior, searches for clues to the disappearance in a limited time while interacting with his childhood friend Hiyori and his senior friend Natsume.

01

Where to use the nine time frames

There are three slots per day: morning, lunch, and after school. There are only nine destinations to choose from over the three days, and you cannot visit all of them at once. Decide for yourself whether to follow the testimony you are interested in or check another location.

02

Review evidence and testimony with clue list

The information you have collected can be read back from the "Clue". By comparing physical evidence with people's stories, you will be able to choose new destinations depending on the information obtained.

03

Investigation and human relationships change the outcome

In addition to how close you get to the truth, your relationship with Hiyori and Natsume will also affect the final stage. According to the official guide, there are six possible endings. When you re-choose a different action, you can also follow up on the places you didn't stop at the first time.

PLAY NOTES

Play notes

Play time
For referenceThe official guideline is 40 to 60 minutes per lap, and 3 to 4 hours to collect all endings. It depends on your reading speed and the actions you choose.
Save and resume
Progress is automatically saved in your browser. Even if you change your device or browser, the data will not be transferred automatically, so please check the backup function in the official guide for migration.
Play environment
You can play for free on your PC, smartphone, or tablet browser. No installation or account registration required.
Language
Conversations, choices, and clues are in Japanese. This is a work that progresses while reading and comparing testimonies of people.
PLAY THE GAME

Destination for three days,
Choose by yourself.

Play Three Days Without Developing for free on the official website

The official work page and official web version were confirmed on September 22, 2026. The two published images were taken by the editorial department on the official web version. Sources: Official work introduction, Official Play Guide, Official FAQ, Official web version

STREAMING INFO

Streaming and video uploads

Streaming permission unconfirmedMonetization permission unconfirmed

The official work page I checked does not have explicit permission conditions for video posting, live streaming, or monetization. Please check the author's latest information before distribution.

“Unconfirmed” does not mean streaming is prohibited. We have not confirmed an official policy for the general public.

Checked: · Official pages checked: Official work introduction, Official Play Guide, Official FAQ, Official web version

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