Story Structure — 5 Plot Phases
A Family of Disappearances
Keiko brings Tatsuo to Aizawa as his walking difficulty worsens. Aizawa finds no physical cause, while the brothers' disappearances and a missing brother's recurring dreams frame the mystery.
Key Events
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Keiko Seeks Medical Help — Keiko brings Tatsuo to Aizawa over his worsening inability to walk and his brothers' disappearances. Characters: Keiko Inagawa, Tatsuo Tamura, Yoshio Aizawa
Location: Aizawa's consultation room
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No Physical Cause Found — Aizawa finds no physical cause for Tatsuo's leg condition and attributes it to anxiety. Characters: Tatsuo Tamura, Yoshio Aizawa
Location: Aizawa's consultation room
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Brothers Have Disappeared — Tatsuo's family history includes the unexplained disappearances of three brothers. Characters: Tatsuo Tamura
Location: Not specified
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Recurring Dream Images — A missing brother repeatedly dreamed of tunnels, a valley, and a ruined castle before vanishing. Characters: Yoshio Aizawa
Location: Not specified
Following the Dream Clues
Aizawa joins Keiko and Tatsuo in investigating the dreams and disappearances. Their search yields notes and photographs, while Tatsuo grows more afraid that the pattern predicts his own disappearance.
Key Events
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Recurring Dream Images — A missing brother repeatedly dreamed of tunnels, a valley, and a ruined castle before vanishing. Characters: Yoshio Aizawa
Location: Not specified
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Aizawa Joins the Search — Aizawa suspects the dreams may be an unconscious warning and travels with Keiko and Tatsuo to investigate. Characters: Keiko Inagawa, Tatsuo Tamura, Yoshio Aizawa
Location: Not specified
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Notes and Photographs Found — The search uncovers notes and photographs connected to the missing men. Characters: Keiko Inagawa, Tatsuo Tamura, Yoshio Aizawa
Location: Investigation site not specified
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Fear of Another Disappearance — Tatsuo's fear intensifies as dates and dream images appear to point toward another disappearance. Characters: Tatsuo Tamura, Keiko Inagawa
Location: Not specified
The Ominous Date
Keiko travels to Kumamoto to trace a photograph, leaving Tatsuo increasingly distressed. Aizawa urges him to face his fears, and Keiko stays with him as the anticipated date approaches.
Key Events
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Keiko Pursues a Photograph — Keiko goes to Kumamoto to investigate the origins of a photograph. Characters: Keiko Inagawa
Location: Kumamoto
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Tatsuo's Distress Deepens — With Keiko away, Tatsuo becomes increasingly distressed. Characters: Tatsuo Tamura
Location: Not specified
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Aizawa Urges Confrontation — Aizawa urges Tatsuo to confront his fears as the anticipated date approaches. Characters: Yoshio Aizawa, Tatsuo Tamura
Location: Not specified
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Keiko Stays with Tatsuo — Keiko stays by Tatsuo as the ominous date approaches. Characters: Keiko Inagawa, Tatsuo Tamura
Location: Not specified
A Calm That Does Not Last
Tatsuo returns to work appearing calmer, but the disappearances remain unexplained. Hiroko then describes her suspicions about Kuze and the history of the disabled child in his care.
Key Events
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Tatsuo Returns to Work — Tatsuo returns to work and appears calmer, although the mystery remains unresolved. Characters: Tatsuo Tamura
Location: Workplace
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Hiroko Reveals Her Suspicion — Hiroko says she lives with Kuze and believes he killed her husband and Shohei. Characters: Hiroko Harada, Toyokichi Kuze, Shohei Harada
Location: Not specified
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The Child's Failed Treatment — Hiroko recounts how treatment for Kuze's child's rheumatism was followed by severe deterioration. Characters: Hiroko Harada, Toyokichi Kuze
Location: Not specified
Tatsuo's Immediate Danger
Hiroko connects the history of the child, Kuze, and the Harada disappearances through her account. She reveals that Tatsuo is now with Kuze at the place where the child is kept, ending the account with his danger unresolved.
Key Events
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The Child's Failed Treatment — Hiroko recounts how treatment for Kuze's child's rheumatism was followed by severe deterioration. Characters: Hiroko Harada, Toyokichi Kuze
Location: Not specified
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Tatsuo Is with Kuze — Hiroko says Tatsuo is with Kuze where the child is kept, placing him in immediate danger. Characters: Hiroko Harada, Tatsuo Tamura, Toyokichi Kuze
Location: The place where the child is kept