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Ongoing case · 2022

Luffy robberies

Also known as Nationwide serial robberies · Kantō serial robberies

ONGOINGCONVICTEDCHARGED

Ongoing case: this file carries charge-sheet facts only. Anyone charged is presumed innocent unless convicted.

Updated
Updated Jul 7, 2026
Victime’s House of Murder Case in KomaeVictime’s House of Murder Case in KomaeCredit: イカしたイカCC BY-SA 4.0Source

The short answer

Luffy robberies in brief

A series of robberies and fraud-linked home invasions occurred across Japan in 2021–2022, allegedly directed from the Philippines by a group of Japanese nationals using aliases including "Luffy" and "Kim"; four suspected ringleaders were deported to Japan in 2023.

Key facts

Year
2022
Place
Japan (multiple prefectures); suspects based in the Philippines
Status
ONGOINGOngoing
Outcome
Convicted: Seiya Fujita and Tomonobu Kojima; Charged: Tomonobu Saito, Yuki Watanabe, Imamura Kiyoto and Nagaura Hiroki

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The case file

What happened

The Luffy robberies refer to a series of criminal incidents in Japan between 2021 and 2022, allegedly linked to a group of Japanese nationals residing in the Philippines. The group is reported to have been led by an individual using the alias "Luffy." Criminal activity associated with the group is believed to have begun in the summer of 2021, with more than 50 cases reported across 14 prefectures in Japan.

The group's origins are connected to an earlier case: in 2019, 36 Japanese nationals belonging to a scam operation called Kakeko were arrested at a hotel in Makati, Philippines, on charges related to telecommunications fraud and extortion. That scheme was estimated to have affected approximately 1,393 victims and caused losses of around ¥2 billion (₱1 billion). Those arrested were deported to Japan between 2020 and 2021, though some suspects, including Yuki Watanabe and Imamura Kiyoto, had their deportations delayed due to separate pending legal cases in the Philippines, including Violence Against Women and Children (VAWC) cases.

Four individuals were identified as suspected senior figures in the network: Yuki Watanabe, known as "Big Boss," reported to be the group's leader; Imamura Kiyoto, known by the alias "Luffy," believed to have organized the Kakeko fraud group in the Philippines; Seiya Fujita, known as "Kim," described as a recruiter who used social media to solicit participants; and Tomonobu Kojima (also referred to as Tatsuhiko Shiratori), who is said to have helped manage the group's finances after joining the organization in 2018.

According to the account, the group recruited accomplices in Japan through social media using so-called "dark part-time job" postings that promised high pay. Instructions to accomplices were reportedly relayed via the Telegram messaging application. Accomplices allegedly posed as police officers or officials from the Japan Financial Services Agency to convince victims that their bank accounts had been compromised, then visited victims' homes to obtain ATM cards and withdraw funds.

On January 30, 2023, the Government of Japan formally requested the deportation of four suspects connected to the case. Toshiya Fujita and Kiyoto Imamura were deported to Japan on February 7, 2023, after their pending cases in the Philippines were dismissed; Yuki Watanabe and Tomonobu Saito were deported the following day. The Philippine Department of Justice, working with the Integrated Bar of the Philippines and the Bureau of Immigration, reviewed the previously pending charges against the four, which were suspected of being used to delay their deportation.

In a related development, on May 26, 2024, Bureau of Immigration Commissioner Norman Tansingco announced the arrest of a 26-year-old Japanese national, Nagaura Hiroki, in Poblacion, Makati, on charges of telecommunications fraud and under an arrest warrant for theft issued by the Tokyo Summary Court.

10 dated entries · 2019–2024

Timeline

  1. 36 Japanese nationals belonging to the Kakeko scam group were arrested at a hotel in Makati, Philippines, on charges of telecommunications fraud and extortion.

  2. Deportations of Kakeko suspects to Japan began.

  3. Yuki Watanabe was detained at the Bureau of Immigration Bicutan Detention Center.

  4. A summary deportation order against Yuki Watanabe was issued.

  5. Criminal activity in Japan associated with the Luffy robberies is believed to have begun, eventually spanning over 50 cases across 14 prefectures.

  6. The Government of Japan formally requested the deportation of four suspects connected to the Luffy robberies.

  7. Toshiya Fujita and Kiyoto Imamura were deported to Japan after their pending Philippine cases were dismissed.

  8. Yuki Watanabe and Tomonobu Saito were deported to Japan.

  9. Japanese authorities reported the arrest of all four suspects.

  10. Bureau of Immigration Commissioner Norman Tansingco announced the arrest of Nagaura Hiroki in Poblacion, Makati, on telecommunications fraud charges and a theft arrest warrant from the Tokyo Summary Court.

6 named in this file

People

Victims first. Every legal label is set from public records and court outcomes, not from the prose.

  • Seiya Fujita

    CONVICTED

    Convicted and sentenced to life imprisonment by the Tokyo District Court on 16 February 2026 for robbery resulting in death and related offenses, as an instigator who directed a series of robberies across Japan; also known by the alias Kim.[3]

  • Tomonobu Kojima

    CONVICTED

    Convicted of aiding and abetting robbery resulting in injury; sentenced to 20 years in prison by the Tokyo District Court in July 2025, upheld on appeal, and finalized by the Supreme Court on 3 August 2026 after his appeal was rejected.[3]

  • Imamura Kiyoto

    CHARGED

    Charged as a senior organizer (alias Luffy) indicted over the Luffy robberies, after being deported from the Philippines to Japan on 7 February 2023; trial pending.[3]

  • Nagaura Hiroki

    CHARGED

    Charged with theft under a Tokyo Summary Court arrest warrant, in a scheme robbing a home by impersonating a police officer; arrested as a fugitive by the Philippine Bureau of Immigration in Makati on 26 May 2024 and held pending deportation to Japan to face the charge. He is separately under Japanese investigation for alleged telecommunications fraud tied to the 'Luffy' remote-robbery network; no charge has been filed for that separate matter to date.[3]

  • Tomonobu Saito

    CHARGED

    Charged as one of the crime ring's senior members indicted over the Luffy robberies; deported from the Philippines to Japan on 8 February 2023; trial pending.[3]

  • Yuki Watanabe

    CHARGED

    Charged as a senior leader (alleged Big Boss) indicted over the Luffy robberies, after being deported from the Philippines to Japan on 8 February 2023; trial pending.[3]

From the record

Quick answers

Who were convicted?
Seiya Fujita: Convicted and sentenced to life imprisonment by the Tokyo District Court on 16 February 2026 for robbery resulting in death and related offenses, as an instigator who directed a series of robberies across Japan; also known by the alias Kim. Tomonobu Kojima: Convicted of aiding and abetting robbery resulting in injury; sentenced to 20 years in prison by the Tokyo District Court in July 2025, upheld on appeal, and finalized by the Supreme Court on 3 August 2026 after his appeal was rejected.

3 cited

Sources

Coverage is not a source: every fact in this file rests on the records below.

  • 2 Press
  • 1 Encyclopedic
  1. Contemporaneous coverage — BBC News

    PressBBC NewsAccessed Jul 7, 2026

  2. Contemporaneous coverage — asahi.com

    Pressasahi.comAccessed Jul 7, 2026

  3. Luffy robberies

    EncyclopedicWikipediaAccessed Jul 7, 2026

Trust

Record history

First published
Jul 7, 2026
Last verified against sources
Jul 7, 2026
Corrections
None

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