既読 - スマホ心理ミステリー

"Already Read" is a sound novel where the story progresses through group chat.

The setting is a certain pension.

There is a strange rule there.

When everyone has read a message written about existence, reality is rewritten according to that record.

Originally, there were 5 people there. However, when a message saying "there is one more person" was read, "you"—who should not have existed—appears as the 6th person.

As you read through the conversation and make choices from the options, you uncover what is happening in this place.

A chat-type sound novel where the ending changes depending on your choices.