Based from a manga by Sakae Esuno. The game introduces Kirisaki Azami as the thirteenth diary owner.
The game also has a system called “Yandere Operation”, where Yuno will taking an action based on player’s choices when her bar is full, which can be a bad or a good thing. Player can also looking at their diary in the game, although it will automatically be done every time the entry affects the story.
