Story Structure — 5 Plot Phases
The Haunting Returns
Nana returns home haunted by Xiao Ai's ghost. Flashbacks reveal the six friends' past with Xiao Ai, including the ouija board reading that identified her as Yuki and her suicide after Song Qian's rejection.
Key Events
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Six Friends Graduate and Part Ways — The six friends go their separate ways after graduation.
Location: University
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Nana Haunted by Xiao Ai — Nana returns home and tells Song Qian and Yang Zheng that Xiao Ai is haunting her.
Location: Nana's Home
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Flashback: Xiao Ai Joins the Clique — Ten years ago, the six friends include Xiao Ai in their group. Characters: Xiao Ai
Location: Campus
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Hongrui Falls for Xiao Ai — Hongrui, in a leg cast, falls in love with Xiao Ai, making Nana jealous. Characters: Xiao Ai
Location: Campus
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Ouija Board Names Xiao Ai as Yuki — A ouija board reading identifies Xiao Ai as Yuki, a cursed girl from the past. Characters: Xiao Ai
Location: Dormitory
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Yuki's Dark Past Revealed — Yuki was regarded as a freak who caused misfortunes, including Song Qian's father's death.
Location: Flashback
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Song Qian Rejects Xiao Ai — Song Qian declares she will never talk to Xiao Ai again. Characters: Xiao Ai
Location: Campus
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Xiao Ai Commits Suicide — Xiao Ai jumps from a building after Song Qian's rejection. Characters: Xiao Ai
Location: Apartment Building
Deaths in the Present
Yang Zheng, Hongrui, and Yufei are killed one by one. Hongrui's blackmail of You Feng over a secret video sets off a deadly chain of events.
Key Events
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Yang Zheng Crushed by Machinery — Yang Zheng is killed when machinery crushes him while with a prostitute.
Location: Warehouse
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Hongrui Blackmails You Feng — Hongrui blackmails You Feng for money to keep the secret video hidden.
Location: Cafe
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Hongrui Slain by Unknown Figure — Hongrui is killed through multiple cuts by an unknown figure.
Location: Unknown
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You Feng and Yufei Hunt for Flash Drive — You Feng and Yufei sneak into Yang Zheng's residence, but Nana already has the flash drive.
Location: Yang Zheng's Residence
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Yufei Stabbed to Death — Yufei is stabbed to death inside her house.
Location: Yufei's House
The Buried Truth
Song Qian watches the secret video and learns that Xiao Ai died accidentally while strangling Nana, and that the friends staged her suicide.
Key Events
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Song Qian Learns Nana's Mental Facility Stay — You Feng tells Song Qian that Nana went to the US for a mental facility, not studies.
Location: Song Qian's Home
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Nana's Restless Visits — Nana visits Song Qian several times, restless from Xiao Ai's terrors.
Location: Song Qian's Home
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Song Qian Watches the Secret Video — Song Qian takes the flash drive from sleeping Nana and watches the video.
Location: Song Qian's Home
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Video Reveals Xiao Ai's Accidental Death — The video shows Xiao Ai died accidentally while strangling Nana. Characters: Xiao Ai
Location: Video Footage
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The Friends Dispose of Xiao Ai's Body — The friends stage Xiao Ai's death as suicide to cover up the accident.
Location: Building Site
The Killer's Confession
You Feng chases Nana to the abandoned building and confesses to murdering their friends. Nana kills him with a metal rod.
Key Events
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You Feng Chases Nana to the Building — You Feng chases Nana to the building where Xiao Ai was disposed.
Location: Abandoned Building
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You Feng Confesses to the Murders — You Feng reveals he murdered their friends, fearing the video would scandalize him.
Location: Abandoned Building
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Nana Impales You Feng — Nana kills You Feng by impaling him with a metal rod.
Location: Abandoned Building
A Twisted Reunion
Months later, Song Qian meets Nana, but Xiao Ai's ghost appears behind Nana, declaring she will kill Nana so she and Song Qian can be together forever.
Key Events
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Months Later: Song Qian Meets Nana — Song Qian meets Nana and tells her everything is over.
Location: Meeting Place
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Xiao Ai Appears Behind Nana — The camera reveals Xiao Ai grasping Nana, about to slash her neck. Characters: Xiao Ai
Location: Meeting Place
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Xiao Ai's Final Declaration — Xiao Ai says once Nana is killed, she and Song Qian can be together. Characters: Xiao Ai
Location: Meeting Place
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Song Qian's Ambiguous Smile — Song Qian is shocked but slowly gives a smile. Characters: Xiao Ai
Location: Meeting Place
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After-Credits Flashback — A flashback replays all characters' conclusions and opinions from the past. Characters: Xiao Ai
Location: Memory
A group of friends go through a series of horrifying events. A suicide that happened two years earlier is revealed.
