In Episode 1 of Kagirohi Shaku Kei - Another, the story begins in a remote mountain village where the body of a young girl, Kirishima Kaede, is discovered hanging in an old school building. Kaede's childhood friend, Aoi Takahashi, suspects foul play and refuses to believe her death was a suicide. Determined to uncover the truth, Aoi confronts a mysterious transfer student, Minazuki Ajisai, who seems to hold the key to the mystery.
As Aoi delves deeper into the investigation, he becomes entangled in a web of dark secrets and supernatural occurrences. The episode sets the stage for a series of eerie and tragic events, blending elements of mystery, horror, and eroticism. The narrative explores themes of guilt, obsession, and the blurred lines between reality and illusion, as Aoi's quest for answers leads him down a dangerous path.