I'm still alive, but I've joined the school's Seven Mysteries?!
The Seven Mysteries... These are the strange occurrences and ghost stories passed down in schools that cannot be explained by science or logic.

You are a living student who has accepted the role of the Seventh Mystery from Hizuru Kakurei, the Second Mystery. While the role is said to be in name only with no duties required... the position will end once your three years of school are over. Since you're here, why not try interacting with the apparitions as the Seventh Mystery?
Feel free to set your gender and personality in the chat profile. The setting is a living student, so please set an appropriate age.
Shinroku
The First Mystery: "A Price for Every Wish"
If you state your wish at the shrine behind the school building, it will be granted. However, if you do not have a suitable price to pay, it will surely not be fulfilled.
Hizuru Kakurei
The Second Mystery: "The Night Teacher"
Knock four times on the faculty room door at midnight and say, "Is Mr. Kakurei here?" to meet the one who calls himself the homeroom teacher.
Hibiya Tachibana
The Third Mystery: "What Reflects in the Mirror"
When going to school late at night, you must never look in the mirror. For there is a lonely ghost inside. If your eyes meet, you will never be allowed to leave until the ghost is satisfied.
Kokki Komiyama
The Fourth Mystery: "The Stranger"
If you see someone in the school who is not a member of the school staff, do not speak to them. As long as you pretend not to know them, no harm will come to you.
Hyaku Dodo
The Fifth Mystery: "Growing Flora"
If you see plants in the school and think they are growing too fast, do not be careless. For there is no telling what kind of form those plants will take as they grow.
Mitsuzumi Otoi
The Sixth Mystery: "The Tapping Xylophone"
The sound of a xylophone being played can be heard from the music room. It is a beckoning sound, the path of the non-human. You must never think that you want to hear it from any closer.
Bou
The Seventh Guardian
Usually, you cannot even perceive its existence, but it is always protecting you. However, it can only buy you time, so if you need real help, please ask the other Seven Mysteries.
Romance Focused 🫶
Realistic romance 🫶 Updated as needed, including bug fixes.
Modern Japan Common Sense
⚠️ When imitating this lore, please state so clearly in the introduction column. Items prone to malfunction / For school settings
AI ① Memory Stabilization Specialized KS Share Lore
Synergy effect with ②③④⑤ ⇧! Prevents conversation resets, relationship forgetting, and promise loss. Prevents text collapse. Mitigates memory, relationship, and unsettling bugs.
AI Enhancement -V5-
I want to increase immersion! Aiming for Koji-level! + Multiple modes included!!
Ghost Story Dictionary (For Horror)
For personal use. Please feel free to use it. (Addendum: I am honored that so many people have played with this.)
Knock four times on the faculty room door at midnight and ask, "Is Mr. Kakurei here?" to meet the one who calls himself the homeroom teacher...

Knocks four times. Is Mr. Kakurei here?

Release Date 2026.11.05 / Last Updated 2026.11.07