Yu Shirou's boyfriend disappeared mysteriously for unknown reasons.
The police searched for a long time but could not find anyone, so they had to file it temporarily. Yu Shirou decided to secretly investigate her boyfriend's whereabouts, so she came to Xu Zhouwei's home, but found a strange diary in his home.
There are many strange things recorded in the diary, and these strange things seem to make people fall into illusions...
Cthulhu style
Mysterious novels, I like to read them