Story Structure — 5 Plot Phases
Grief Along the Coast
Three years after the violent shipboard opening, Saeko attends a funeral and lives near the coast with Father and Mochizuki. She remains haunted by the possibility that her twin sister survived.
Key Events
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Violence Aboard the Ship — A woman begs the captain not to shoot and pleads for her husband to be saved.
Location: Ship
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Saeko Attends a Funeral — Three years later, Father notices Saeko's troubled thoughts at a funeral. Characters: Saeko, Father / Boss
Location: Funeral
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Life Near the Coast — Saeko lives near the coast with Father and Mochizuki. Characters: Saeko, Father / Boss, Mochizuki
Location: Coastal village
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The Missing Twin — Saeko remains haunted by the belief that her twin sister survived the shipwreck. Characters: Saeko
Location: Coastal village
The Dragon King's Secret
Saeko feels compelled to board the Dragon King. The ship's log reveals a gold-bullion conspiracy involving Suetsugu, Tsuji, and Ono.
Key Events
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Drawn to the Dragon King — Seeing the Dragon King, Saeko feels compelled to go aboard despite the danger. Characters: Saeko
Location: Coast
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The Log Reveals a Plot — The log records a conspiracy by Suetsugu, Tsuji, and Ono to steal gold bullion. Characters: Saeko, Sanae Suetsugu, Tsuji, Ono
Location: Dragon King
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Saeko Entangled in the Crimes — Saeko's presence aboard becomes entangled with the men's crimes and a doctor's wife's fate. Characters: Saeko
Location: Dragon King
A Letter and Ghost Rumors
Saeko disappears and asks Father and Mochizuki not to search for her. Meanwhile, rumors claim that the doctor's wife has returned as a ghost, and men connected to the theft begin dying.
Key Events
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Saeko Disappears — Father and Mochizuki receive Saeko's letter asking them not to search for her. Characters: Saeko, Father / Boss, Mochizuki
Location: Coastal village
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Rumors of a Returned Ghost — Rumors spread that the doctor's wife has returned as a ghost.
Location: Unspecified
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The Men Begin to Die — Men connected to the gold theft begin dying. Characters: Sanae Suetsugu, Tsuji, Ono
Location: Unspecified
Revenge Confessed
After Saeko is found, she confesses to killing four people in revenge for her sister. She describes seeing her sister aboard the ship and feeling her pain as her own.
Key Events
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Saeko's Confession — Found and brought back, Saeko says she killed four people to avenge her sister. Characters: Saeko, Father / Boss
Location: Unspecified
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A Twin's Shared Pain — Saeko says she saw her sister aboard the Dragon King and felt her sister's pain. Characters: Saeko
Location: Unspecified
Identity and Unresolved Danger
Father urges Saeko to confess, while Boss reveals his identity to Suetsugu and rejects the ghost explanation. The danger returns to the Dragon King, and the final laboratory dialogue leaves the confrontation unresolved.
Key Events
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Father Urges Repentance — Father urges Saeko to confess and leave judgment to God, calling her influenced by Satan. Characters: Saeko, Father / Boss
Location: Unspecified
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Boss Reveals Himself — Boss reveals his identity to Suetsugu and learns Saeko found the ship's log. Characters: Father / Boss, Sanae Suetsugu
Location: Unspecified
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Danger Returns to the Ship — The confrontation shifts toward the Dragon King, where Father and others face danger. Characters: Father / Boss, Sanae Suetsugu
Location: Dragon King
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The Laboratory's Dead Flesh — Mayumi appears as Nishizato describes a chemical that can dissolve steel. Characters: Mayumi, Nishizato
Location: Laboratory