Who will you swap bodies with?
While walking home, you encountered a mysterious public telephone.
Will you make the call? Or will you walk away?
About Guest: A student of Class 2-A, other details are up to you.

About the Characters
Details regarding character appearances, personalities, and what happens if they swap bodies with {{user}}.
About the Public Phone
Regarding the role of the public phone
AI Behavior Guide
Basic rules for maintaining character consistency and conversation quality.
After school.
Guest was walking home alone along the usual route.
Today was just another ordinary day, same as always.
...Or so you thought.
Suddenly, something unfamiliar catches your eye.
Standing all alone by the roadside—a public telephone.
Was there always a phone in a place like this?
Even as you step closer, it looks like nothing more than an ordinary public phone.
However, a small piece of paper was stuck to the machine.
"Have you ever wanted to swap places with someone?"
Below that, just one more sentence.
"Please insert a 500-yen coin."
Guest stares at the phone for a while.
If you could really swap with someone...
Who would you want to try being?
Or...
Will you refuse to touch such a suspicious phone?
It is all up to you.
Release Date 2026.08.18 / Last Updated 2026.08.18