Intervene in Tsumimi’s livestreams and uncover the truth behind Mashiro’s disappearance.
A psychological horror adventure of investigation and deduction.

■ Intervene in the stream. Uncover the truth.

• Mashiro, your favorite streamer, is missing.
  Intervene in Tsumimi's livestream, investigate the clues, and uncover the truth.

■ As a viewer, use comments, Mega Chats, and gifts to change the story.

■ Investigate clues hidden outside the stream across fan sites, social media, and more.

■ Connect the clues, make your deductions, and uncover the hidden truth.

By day, investigate strange details through social media, fan sites, maps, and search results.

By night, watch Tsumimi’s stream and intervene through comments, Mega Chats, and gifts.

What will you say?

When will you stay silent?

How will you use your limited funds?

And how will you connect the fragments before it is too late?

This is a 15-day psychological horror adventure about stream intervention, investigation, and deduction.

〜 Before You Play 〜

【Basic Controls and Official Guides】

・Investigation and Deduction
Use keywords you learn during streams to search social media and the map.
Be sure to check replies to posts and location details as well.
You can review the information you have collected in “Investigation Files.”

・Saving and Resuming
You can save and load your game from the top of the home screen.
Saving before entering a stream makes it easier to try different choices later.

・Fast-Forwarding When Replaying
During a stream, hold down the Ctrl key to fast-forward to the next Mega Chat choice.

For detailed instructions, please see the “TSUMIMI TIME Play Guide” in Steam News.

If you need help progressing through the game or finding solutions,

our official FAQ is also available in the “Guides” section of the Steam Community hub.

The latter half of the FAQ contains walkthrough spoilers, so please refer to it as needed.

[Investigate by Day. Intervene by Night.]

Behind Tsumimi’s cute livestream lies the shadow of Mashiro’s disappearance.

Tsumimi smiles on screen.

Rumors flow through the comments.

Unsettling records appear in search results.

Someone’s obsession remains on a fan site.

The deeper you look beyond the stream, the closer you get to the truth.

[Your Deductions Change the Ending]

Multiple endings await.

Your interventions, investigations, deductions, and choices will shape Tsumimi’s stream and determine how the story ends.

Reach the truth through your own choices.

____________________

◼︎Character Introductions

■Idol gallery

▼Required PC Specs

This game does not rely on demanding 3D graphics processing. It is designed to be easy to play across a wide range of PC environments.Please check the system requirements at the bottom of the page for detailed specifications.

▼Audio Note

This game uses close, detailed environmental audio to create the feeling of sound pressing in from all around you.

For the best experience, we recommend playing with headphones or earbuds.