【Ki-ring-tei】Diary of Mutual Love

Mayu waited for the producer to finish his work.
The producer listens to Mayu say that she was waiting to read the diary that she usually carries around with her, and she tells him that it is an exchange diary.
The producer, who has no recollection of writing the diary, is told the contents of the diary Mayu wrote, and the producer decides to play the game written in the diary.

This is a 28 page piece.