X’s impersonation of the real Daisuké Taniguchi

X’s impersonation of the real Daisuké Taniguchi turns a marriage, a family album, and a government-verified identity into conflicting evidence. X did not merely use a name belonging to a fictional person: he lived as Daisuké, married Rié, and fathered a child, while the actual Daisuké continued to exist as a distinct person. The photographs that expose the substitution therefore unsettle both private memory and official certainty, making the question of who a person is harder than the question of what name appears in the records.

The Substitution Exposed

The contradiction first becomes unmistakable when Kyoichi examines photographs of the man Rié had believed to be her husband. After looking at a picture, he insists that the man is not Daisuké. Rié initially wonders whether Kyoichi means his brother has changed with age, but Kyoichi rejects that explanation: the man in the photograph is someone else entirely. He recognizes not a changed version of his brother, but a stranger using his brother’s name.

The family album makes the recognition more consequential. X had assembled it from printouts of digital photographs, documenting a life in which he appeared beside Rié, Yuto, and Hana. Page after page records the apparent family’s shared past. But at the end Kyoichi finds an older photograph of himself with his parents at their family home. He remembers why his brother Daisuké is absent: Daisuké took the picture. The album thus places the impostor’s accumulated domestic presence beside an image anchored in Kyoichi’s own memory, and the contrast breaks the assumption that years of family photographs can establish who their subject was.

Kyoichi’s response is anger and disbelief, followed by the blunt conclusion that someone impersonated Daisuké. He has only just seen the photograph of X and cannot identify who the man actually was. He suggests going to the police, treating the deception as a possible scam, while Rié asks the question his recognition leaves unanswered: who, then, was her husband? The exposure establishes the false identity but does not immediately supply X’s original one.

A False Identity in Public Records

For Kido, the case is perplexing precisely because “Daisuké Taniguchi” was not an invented identity. The real person existed in census information recorded in his family register, and Kyoichi could distinguish him from X by sight. Yet the man who had lived with Rié had passed as that actual person. The impersonation therefore joined two lives under one name without making them the same life.

X’s assumed identity was sustained by more than introductions or an untested personal story. Government officials accepted his marriage notification and later his death notification when updating the family register. He drove with a license, visited a doctor using a health-insurance card, and made his pension contributions punctually. Public records consequently certified the deceased man as Daisuké Taniguchi across ordinary administrative encounters. Nothing in that official trail appeared to contradict his account of growing up in Gunma, even though his face did not match the real Daisuké’s.

The gap between those records and the photographs is the central paradox of the impersonation. Administrative verification confirmed a legally legible identity through repeated documents and transactions; family recognition, by contrast, failed as soon as Kyoichi saw X’s face. Neither kind of evidence simply cancels the other: the records explain how X could live as Daisuké, while Kyoichi’s recognition establishes that the recorded husband was not the man he knew as his brother.

Marriage, Family, and the Afterlife of the Deception

X’s impersonation had intimate consequences. He married Rié under Daisuké’s name and fathered a child with her, building a household whose shared history was recorded in the album. For Rié, the discovery does not erase the life represented in those photographs; it changes the identity of the person with whom that life was lived. The deception reaches backward into the meaning of her marriage and forward into the status of the family it produced.

The investigation also brings the real Daisuké’s absence into sharper focus. Kido meets Kyoichi while trying to help with inheritance-related questions, but the discovery that X was not his brother does not locate the actual Daisuké. Later, Kido shows X’s photograph to Misuzu, who does not recognize the man and returns the photograph. She offers three photographs of Daisuké from their relationship more than ten years earlier. These images are more recent than those Kyoichi had been able to provide, but they still show the real Daisuké rather than X: in them, Daisuké’s stiff, bashful expression belongs to a shy man being photographed by his lover. The comparison confirms the difference while leaving the whereabouts of the real man unknown.

Identity Beyond Resemblance

The episode sets three forms of identification against one another: a name, an official record, and a face recognized through personal memory. X successfully occupied the first two in public life, and he made the borrowed identity the basis of a marriage and parenthood. But the family photograph exposes a limit that bureaucracy cannot resolve: a record can carry a person’s name without making its bearer that person. Kyoichi’s remembered reason for Daisuké’s absence from the old photograph gives his recognition particular force; it rests not on a vague sense of resemblance but on the brother’s place in a specific family memory.

At the same time, the images do not answer every question. Rié and her children appear repeatedly beside X in the album, while the man’s original identity remains unknown in this encounter; Misuzu’s older pictures help distinguish him from the real Daisuké but do not explain the substitution. The relationship is therefore defined as much by its unresolved remainder as by its revelation. X’s identity as Daisuké is disproved, but the person beneath that assumed name, and the true Daisuké’s fate, remain separate questions.