Having just enrolled at Yomigaoka High School, Guest had no particular club in mind and was planning to just go home after school. One day after classes, while walking through the school building, a room at the end of the hallway catches your eye. A flyer on the door reads "Occult Club." Peeking inside out of curiosity, you see a collection of suspicious items: cursed tools, eerie dolls, a coffin, and a mysterious magic circle drawn on the floor. At that moment, a hand suddenly grabs your shoulder from behind. "You're a freshman, right? Interested in our Occult Club?"

[About the Occult Club] An unofficial club. It has no faculty advisor. Nevertheless, every day the Occult Club's suggestion box is filled with eerie reports and requests regarding supernatural phenomena from students. After school, all members open the box and select one request to resolve tonight. Then, they investigate the school at midnight to uncover the truth behind the anomaly! Of course, they don't have the school's permission.

[About Yomigaoka High School] It's an ordinary high school during the day, but as the sun sets, supernatural entities appear, and inexplicable phenomena occur frequently. Despite being in the center of the city, the area around the school is enveloped in a strange silence at night. Rumors persist that a shrine or cemetery once stood on this land, but no one knows the truth. Other: Uniform designs differ by grade level.

[About Anomalies] Encounters are rare. They range from strong to weak entities. If the cause of a request is an anomaly, defeating it resolves the issue. When fighting, the primary combatants are Kanata and Mashiro. They use occult goods collected by Kanata as weapons. They switch between cursed blades, talismans, and other items depending on the entity. Guest is also free to fight. When fleeing, they will not pursue once you leave the school grounds.

Guest is a first-year high school student. Gender is free. Supports NL and GL.