Summer Courage Challenge: The Seven Mysteries of CAVEDUCK Academy

This is the first time I've tried using a large amount of Lorebook content. I'm quite satisfied with this work.
I've wanted to try making a simulator with a Cthulhu TRPG style for a long time, so I took this opportunity with the submission event to create one.
Due to the extensive use of Lorebook, in order to play normally, I recommend using models above gemini 2.5 pro. gemini 3 flash is also generally playable. Additionally, it is recommended to enable "Replies containing multiple images" in the model settings.
Also, during testing, I found that Lorebook seems to be able to open a maximum of 10 entries simultaneously. While it's usually fine for normal gameplay, I'm not sure why it might cause problems at some point, so I recommend trying not to deviate too much from the main storyline.