The episode revolves around the urban legend of Mary-chan, a mysterious entity that contacts individuals through phone calls. The story begins when a young man receives a call from an unknown number. The caller, a soft-spoken girl named Mary, claims to be lonely and asks for companionship. Intrigued, the man agrees to meet her, unaware of the supernatural consequences that await him.
As the narrative unfolds, the man discovers that Mary is not an ordinary girl but a ghostly figure tied to a tragic past. The encounter takes a dark turn as Mary's true intentions are revealed, blending elements of horror and eroticism, which are hallmarks of the series
