Identity laundering

Identity laundering is the novel’s term for using family-register changes to replace or remake a person’s recorded identity. More than an alias, it turns the state’s records into instruments of reinvention: a person may live under another person’s documented history, while the records that ordinarily establish identity can conceal who is actually living, marrying, working, or dying. The practice becomes central to Kido’s investigation because it offers a possible explanation for the contradiction between the man recognized in official documents as Daisuké Taniguchi and the man his brother identified as an impostor.

Meaning and Method

Kido encounters the term while questioning Omiura, a broker implicated in arranging family-register exchanges. Asked who had exchanged registers with the man at the center of Kido’s inquiry, Omiura rejects the premise that the process is simply an exchange and calls it “identity laundering.” He compares the desire to clean up a personal past with the laundering of dirty money, and describes people altering their family trees to climb the social ladder. His account makes clear that the practice depends on more than one person adopting a different name: it uses legal records to make an assumed identity administratively credible.

The novel distinguishes this from ordinary concealment by showing how thoroughly a laundered identity can be recognized by institutions. The supposed Daisuké Taniguchi had registered a marriage and a death, held a driver’s license and health-insurance card, and paid into the pension system. Government officials had updated his family register on the basis of those notifications, and the public records supported his account of growing up in Gunma. Yet his legal identity did not match the man in the photograph recognized by Daisuké’s brother. The records were consistent with one another while remaining at odds with the person they purported to identify.

Brokers and Earlier Cases

Kido’s research leads him to a 2007 case in Adachi ward involving two men who mutually traded family registers. A fifty-five-year-old man used the identity of a sixty-seven-year-old and fraudulently received his pension. The older man, in turn, wanted to persuade his fiancée that he had never been married and was ten years younger. The younger man was convicted of false entry in an original notarized electronic document and sharing that false document; he received a one-year prison sentence, suspended for three years. Their case demonstrates how an identity trade could serve distinct personal aims while also producing fraud against the state.

A third person had brokered that exchange. Although initially given only a suspended sentence as an accomplice, he was later sentenced to three years in prison for an investment scam involving a nonexistent business. Kido’s research suggested that this middleman had arranged numerous other exchanges for a fee. The overlap between the case and the year Daisuké moved from his Osaka apartment, while X appeared in Town S, gives Kido grounds to suspect a connection. The broker’s role shifts his investigation away from a simple question of which two people exchanged identities and toward the possibility of a chain of transactions arranged for clients with changing needs.

Omiura and the History of the Racket

A blog describing the 2007 trial traced Omiura’s involvement in “past laundering” to the previous year. According to its account, a news report about the James Bulger murder and its aftermath gave him the idea of selling and swapping family registers. The report described how the two perpetrators, after serving their sentences, were given new identities before release, and how one was later identified by a tabloid. The blog claimed that Omiura saw the story as an opportunity to sell people a form of reinvention through altered registers. It also suggested that he arranged more exchanges than the police discovered, and that some customers entered into repeated trades when dissatisfied with an identity they had acquired.

Those reported details matter to Kido because repeated exchanges make a single neat pairing unreliable. He had been troubled by the possibility that X, also known as Makoto Hara, had passed his identity to Shozo Tashiro, a homeless man with a mental disability. Tashiro’s uncertain testimony, however, did not establish that he had met Hara himself; he might have encountered only someone using Hara’s name. Kido consequently revises his theory: Hara may first have exchanged identities with a different man, who then passed Hara’s unwanted identity to Tashiro. The name Yoshihiko Sonézaki, written on one of Omiura’s postcards, becomes a possible link in this reconstructed sequence.

Records, Exclusion, and the State

The novel places identity laundering beside a different problem: people who are missing from the records altogether. While discussing tsunami victims with Nakakita, Kido learns about children without family registers because their births went unreported. Under Japan’s three-hundred-day rule, a child born within three hundred days of a divorce was legally presumed to be the former husband’s child. In cases where a woman had a child with a new partner soon after divorce, a birth notification might not be submitted, leaving the child without a family register despite meeting the conditions for Japanese citizenship. The state could consequently fail to recognize even that the child had been born, let alone count the child among the tsunami dead.

This absence leads Kido to consider whether X himself might once have been unregistered. If so, Daisuké could have taken on X’s identity while becoming unregistered in his place. Kido fears that this arrangement could have made Daisuké’s murder impossible for the authorities to recognize: without a reliable record, a discovered body might be treated as unidentified, while a body lost to the tsunami could leave even fewer traces. This remains a conjecture, not a solved fact, but it shows why the investigation cannot treat an absent name as proof that a person never existed.

Nakakita’s account also places these vulnerabilities in the longer history of the family register. The system began under the late-sixth-century Ritsuryo bureaucracy, initially serving policing and taxation. It later gathered information including religious affiliation, birth, marriage, adoption, address, occupation, and death; people who were not attached to a settled place, including vagrants, could remain outside its coverage. After freedom of movement was recognized in the Meiji period, the modern register replaced a system premised on attachment to land, but its use for conscription and taxation also encouraged people to abandon or falsify records. Nakakita describes the resulting gaps as a system like Swiss cheese. He observes that residence certificates now handle much identity management and anticipates that linking taxes and social security through the My Number system may make the family register redundant. Kido replies that identity trading could become easier, while biometric integration might make the system inescapable.

Consequences for Kido’s Investigation

The register proceedings in Rié’s case show that laundering has consequences beyond the people who trade identities. Because the family register listed Rié and the supposed Daisuké at her family home, Kido petitioned the Miyazaki Family Court to cancel the death-based removal of Daisuké from the register and then remove his record from Rié’s register, restoring her maiden name, Takemoto. This would annul their marriage on grounds of error and erase the second marriage from her family register. It would also make Hana, Rié’s child with X, legally illegitimate. The court requested Rié’s personal appearance and a DNA test to establish that X was not Daisuké; Kido collected hair, nail clippings, an electric razor, and a toothbrush from X’s effects as potential samples.

As Kido reorganizes a year’s investigation, identity laundering becomes the framework that allows him to revise, rather than resolve, his theory of what happened. He suspects that Makoto Hara may have become Yoshihiko Sonézaki, then exchanged that identity for Daisuké Taniguchi’s and gone to Town S, where he met Rié. If that reconstruction is right, the real Daisuké may have become Sonézaki, unless he exchanged registers again. Whether Daisuké is still alive remains unknown. The term therefore names both a concrete criminal method and the investigative difficulty at the novel’s center: official records can make an identity legible without making the person behind it certain.