Character Relationship Map: Museum

Characters

• Hisashi Sawamura (played by Shun Oguri) — protagonist

  Hisashi is a police investigator whose demanding work has distanced him from his wife, Haruka, and their son, Shota. He investigates murders targeting former jurors, discovers Haruka and Shota have di...

• Haruka Sawamura (played by Machiko Ono) — supporting

  Haruka is Hisashi's wife and Shota's mother, left feeling isolated by Hisashi's consuming police career. She accuses him of being the worst father and is later revealed to have served as a juror in th...

• Junichi Nishino (played by Shuhei Nomura) — supporting

  Junichi is involved in the police investigation of the horrifying murder involving starving dogs. He is visibly shaken by the brutality of the crime, while Hisashi studies the deliberate arrangement o...

• Tsuyoshi Sugawara (played by Tomomi Maruyama) — supporting

  Tsuyoshi is part of the investigation and makes a crucial discovery linking the murders. He determines that both victims had served as jurors in an infamous murder trial, giving Hisashi and the police...

• The Frog Man (played by Satoshi Tsumabuki) — supporting

  The Frog Man is the murderer responsible for elaborate crimes against former jurors, staging punishments around their personal lives and fears. He chooses rainy weather because of a severe sunlight al...

• Shota Sawamura (played by Himiko Igarashi) — supporting

  Shota is Hisashi and Haruka's son, whose important moments have been missed because of Hisashi's demanding police work. He disappears from home with Haruka two weeks before the investigation reaches i...

Canonical Relationships

Family, romantic, and professional connections based on plot evidence.

• Junichi Nishino → Tsuyoshi Sugawara (Professional Colleague) — Both support the investigation into the linked murders.

  Junichi is shaken by the murder investigation, and Tsuyoshi develops a key connection between the victims and the infamous trial.

• Hisashi Sawamura → Tsuyoshi Sugawara (Professional Colleague) — They contribute different investigative findings to the same case.

  Hisashi leads the investigation, while Tsuyoshi Sugawara discovers that both victims served as jurors in the same trial.

• Hisashi Sawamura → Junichi Nishino (Professional Colleague) — They are police colleagues affected by the murder case.

  Hisashi investigates the murders while Junichi Nishino is shaken by the first crime, placing both within the police investigation.

• Haruka Sawamura → Shota Sawamura (Family Mother) — Haruka and Shota are members of the same endangered family unit.

  Haruka and Shota are described as Hisashi's family, and both disappear from the home before Hisashi begins searching for them.

• Hisashi Sawamura → Shota Sawamura (Family Father) — Hisashi is Shota's father and is forced to confront his neglect.

  Haruka calls Hisashi the worst father, and Hisashi later apologizes to Haruka and Shota and promises to save them.

• Hisashi Sawamura → Haruka Sawamura (Family Husband) — Their marriage is strained by Hisashi's emotional and physical absence.

  Hisashi returns home to Haruka, and she accuses him of being the worst father because his police work has isolated the family.

Story Dynamics

Alliances, conflicts, and narrative interactions that evolve throughout the story.

• Junichi Nishino → The Frog Man (Narrative Investigator And Suspect) — Junichi is part of the investigative force opposing the killer.

  Junichi is shaken by the first murder as the police investigation seeks the person responsible for the staged crimes.

• The Frog Man → Shota Sawamura (Conflict Captor And Victim) — Shota is endangered as part of the killer's attack on Hisashi's family.

  Haruka and Shota disappear from home, and Hisashi confronts The Frog Man while trying to save them.

• The Frog Man → Haruka Sawamura (Conflict Persecutor And Target) — Haruka becomes a target because of her role in the earlier verdict.

  The killer punishes jurors from the infamous trial, and Hisashi learns that Haruka was one of those jurors.

• Hisashi Sawamura → The Frog Man (Conflict Arch Enemy) — The investigator and murderer are the central opposing forces.

  Hisashi pursues the killer and eventually confronts The Frog Man, who claims that Hisashi has slowly killed his family through neglect.

Story Analysis

A police investigator pursues a trial-driven killer while confronting the neglect that has damaged his own family.

Plot Progression

1. A Family Left Waiting — Hisashi returns home after allowing police work to dominate his life. Haruka's accusation exposes the emotional damage inside the family.
2. Murderers Leave A Pattern — A horrific chained-body murder and a second similar crime reveal deliberate staging. The investigators begin searching for a common motive.
3. The Juror Connection — The victims are linked to an infamous murder trial, and Hisashi discovers that Haruka was also a juror. Her disappearance with Shota transforms the case into a personal crisis.
4. Rain Reveals The Hunter — The police identify the killer's trial-based punishment scheme and infer that rain protects the culprit from sunlight. Hisashi follows a suspicious van and finds a personal threat.
5. A Father's Desperate Reckoning — Hisashi confronts The Frog Man, who turns the family's suffering into an accusation against him. Hisashi faces his inherited resentment and promises to save Haruka and Shota, but their fate is not con...