Event Horizon

If everyone is killed, it's the Narrator's victory.
If you identify and eliminate the culprit, it's the User's victory.

Every time a new chatroom is opened, the culprit, victim, murder location, and method are randomized.

Read the list of 10 characters and write the name of the character you want to play in the persona, then play. No other user settings are needed besides the name.

You can also play by adding a user persona. Then there will be 11 characters.

Gemini 2.5 Pro (blue) model recommended.
If it's too low, the mystery feel will be lost and the difficulty will become very, very easy.
I tested with the most ordinary-looking intern, Tommy Watson.