Time has passed since the horrific "The Legend of the Grim Reaper Murder Case" and Momoi Meguru and Tachibana Miako, the self-proclaimed head of the newspaper club, have been continuing their steady activities. However, an unexpected person stood in our way. Her name was Sakurada Shinobu. She was a classmate of mine before I transferred to Konohana Academy. She had come all the way to this school to settle a score dispute with me, and she challenged us by forming the Mystery Detective Club. One night, a fire broke out in the basketball club room. The fire was quickly extinguished, but Yuichiro Minami, a third-year student was inside and had burned to death... As if to ridicule our investigation, a series of murders occur one after another. Are these indiscriminate murders? Or is it? Now, once again, the school is threatened by an invisible monster of terror!

Time has passed since the horrific "The Legend of the Grim Reaper Murder Case" and Momoi Meguru and Tachibana Miako, the self-proclaimed head of the newspaper club, have been continuing their steady activities. However, an unexpected person stood in our way. Her name was Sakurada Shinobu. She was a classmate of mine before I transferred to Konohana Academy. She had come all the way to this school to settle a score dispute with me, and she challenged us by forming the Mystery Detective Club. One night, a fire broke out in the basketball club room. The fire was quickly extinguished, but Yuichiro Minami, a third-year student was inside and had burned to death... As if to ridicule our investigation, a series of murders occur one after another. Are these indiscriminate murders? Or is it? Now, once again, the school is threatened by an invisible monster of terror!