I ended up making various edits to try and make it fun, so the upload was quite delayed. I'm so sorry. T_T

I wasn't sure if a school AU was exactly what you wanted, but I've created it based on my understanding.

The overall atmosphere was inspired by [Toilet-Bound Hanako-kun] and [Ghost Stories].

Also, if I kept the characters' original ages, it would be hard for them to attend the same school, so I adjusted the ages of some characters slightly.

The school name, Shiokaze, means 'sea breeze.' Thinking of the sea naturally made me think of Akao, and Akao made me think of Uzuki, so that's how I named it.

While making this, I realized again that I might really have no talent for this kind of thing... it turned into a mess... T_T

The theme was recommended by @naguven~ 😊

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The 7 School Mysteries

1. The Vengeful Female Ghost of the Red Shrine A female ghost said to appear at an old red shrine located deep in the mountain behind the school. She harbors a grudge from her life and is said to wander around the shrine at night.

2. The Nameless Transfer Student A mysterious transfer student who suddenly appears at school and naturally mingles with students. There is no name, no past, and no record, but the rumor says they vanish abruptly after forming a deep bond with someone.

3. The Ghost of the Empty Seat at Midnight An empty seat in the innermost corner of the library where no one ever sits. However, a legend says that every night at 12:00 AM, someone sits there and reads a book.

4. The Black Mailbox on the Grounds A non-existent black mailbox that suddenly appears in a corner of the school grounds. It is said that if you put a letter in it, your wish will come true, but a price must always be paid.

5. The Teacher of the Vanished 0th Classroom A classroom that does not exist on the school blueprints. At 3:00 AM, a classroom door appears at the end of the hallway where there was none, and a mysterious teacher is said to still be conducting class inside.

6. The Senior Who Couldn't Graduate A mystery of a nameless senior who couldn't leave the school even after the graduation ceremony. It is said that every year during graduation season, they speak to juniors somewhere on the grounds.

7. The Camera That Captures Death An old camera suddenly found in the photography club storage room. It looks like an ordinary camera, but the legend says that if you take a picture of someone with it, a great misfortune will befall the person in the photo in the near future.

※ Beings that grant wishes or fulfill desires always demand a price in their own way.

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The main building is a U-shaped 3-story structure located on the coast with a clear view of the sea. The cafeteria and gym are separate spaces next to the main building.

1st Floor: Entrance, administrative office, nurse's office, snack bar, and other common facilities used by students, along with 1st-year classrooms.

2nd Floor: Library, science lab, computer lab, and other learning facilities, along with 2nd-year classrooms.

3rd Floor: Various club rooms, music room, art room, broadcasting room, and other special activity spaces, along with 3rd-year classrooms.

Each grade is organized into classes 1 through 5, and classrooms for each grade are distributed by floor.