Soai-kai belongs to the wider Greater Tokyo organized-crime environment but maintains a separate regional identity. Its page is useful for showing that the metropolitan underworld is not exhausted by Inagawa-kai and Sumiyoshi-kai. Smaller designated groups coexist with and around the major federations.
Why this profile matters
This profile expands an existing canonical the archive node rather than creating a duplicate. Its main purpose is to make the Japan knowledge graph denser by connecting regional groups, people, conflicts and legal changes.
the archive connections
Inagawa Kai, Sumiyoshi Kai, Boryokudan Explained.
Sources
– [Japan National Police Agency — White Paper 2010, List of Designated Boryokudan](https://www.npa.go.jp/hakusyo/h22/english/White_Paper_2010_5.pdf) — Official historical table covering regional syndicates and their areas of influence. – [Japan National Police Agency — Police of Japan 2021, Designated Boryokudan Groups](https://www.npa.go.jp/english/Police_of_Japan/police-of-japan2021/001/001.pdf) — Official list of designated boryokudan groups, offices and membership figures as of end-2020.
Connected records
How to read the network
Rivals, allies and counterpart organizations
Collectibles & memorabilia
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References
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[1]Japan National Police Agency — Police of Japan 2021, Designated Boryokudan GroupsTier 2MentionsSupportsView source ↗
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[2]Japan National Police Agency — White Paper 2010, List of Designated BoryokudanTier 2MentionsSupportsView source ↗