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怪異番号~20✕✕(ニーマルバツバツ)~
A mysterious phone number on a park restroom wall leads to an unknown “voice,” quietly awakening the town’s hidden apparitions. This is a horror text adventure with no jump scares—no loud noises or grotesque surprises—designed for a safe and tension-focused experience.

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Curator Review

Recommended
By GameWith.jp November 16

“4つのエピソードで構成されたホラーテキストアドベンチャーゲーム。
主人公は「公衆トイレに好きな相手と結ばれるか占ってくれる電話番号があるらしい」という噂を耳にし、想い人との相性を占うために番号を探しに行く。
公園のトイレに書かれた電話番号は、どこに繋がるかはわからない。番号に電話をかけると、受話器の向こう側から“声”が聞こえる……。
”

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Features
Single-player
Family Sharing
Steam is learning about this game 
Languages:
Interface Full Audio Subtitles
English Not supported
Japanese ✔ ✔
English language not supported

This product does not have support for your local language. Please review the supported language list below before purchasing

This game is not yet available on Steam

Planned Release Date: Q1 2026

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About This Game

How to Play

“Kaibango ~20XX~” is a traditional text adventure game where you progress through the story by clicking the screen.

The player selects one of four options shown on the map to advance the story.
After making a choice, the story follows a single linear path until the ending.
Enjoy a full horror experience from start to finish.

Story

Japan, 2005 — In a mid-sized city, the protagonist is living an ordinary middle school life when they hear a strange rumor:
“There’s a public restroom somewhere in town with a phone number that can tell you if your crush will return your feelings.”

It’s known as the “Love Fortune Phone.”

To find out their compatibility with their crush, Kamidani,
the protagonist sets out into the night in search of that mysterious number.

Game Features

Genre: Slice of Life × Horror
Gameplay: Text Adventure with Choices
Play Time: Around 2 Hours

System Requirements

    Minimum:
    • OS: Windows 10/11
    • Processor: Intel Core 2 DUO 相当以上
    • Memory: 600 MB RAM
    • Graphics: 1280×720
    • Storage: 800 MB available space
    • Additional Notes: だいたいどれでも動くと思います。
    Recommended:
    • OS: Windows 10/11
    • Processor: Intel Core 2 DUO 相当以上
    • Memory: 600 MB RAM
    • Graphics: 1280×720
    • Storage: 800 MB available space
    • Additional Notes: だいたいどれでも動くと思います。
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