Kaidan to Odorou, Soshite Anata wa Kaidan de Odoru

In a middle school located in Shishibone city, a group of students, led by Tomohiro Miyajima, are preparing for an exam. Seeking excitement and financial gain, they create a fake curse called "Ohone-sama’s curse," marking chalkboards with the character for bone and spreading rumors. Their prank leads to donations and the curse becoming a school legend. Tomohiro and his friends know the curse is a fabrication, making it impossible for anything real to occur. However, they receive 50,000 yen and a letter requesting the curse be directed at Tanashi Miyoko. After this, bullying and strange incidents increase, leaving the group with a mystery they must investigate. Events unfold that defy logic—some people who should be dead are alive, and others possess knowledge they shouldn't. The situation becomes more complex as familiar faces appear different, raising questions about what is happening and how.