Dojin-kai

Dojin-kai became one of the most important regional yakuza organizations in Kyushu. Its modern history is dominated by a 2006 succession dispute that caused senior figures to leave and form Kyushu Seido-kai. The resulting conflict produced repeated shootings and bomb attacks, killed gang members and civilians, and eventually helped drive changes in Japan’s anti-boryokudan framework.

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

Isoji Koga, Seijiro Matsuo, Kyushu Seido Kai, Namikawa Kai, Dojin Kai Kyushu Seido Kai Conflict, Anti Boryokudan Law Era.

Sources

– [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. – [Japan National Police Agency — 2013 White Paper, Dojin-kai / Kyushu Seido-kai Conflict](https://www.npa.go.jp/hakusyo/h25/honbun/html/pt100000.html) — Official account of the violent succession conflict and civilian victim in Saga. – [Japan National Police Agency — Boryokudan Countermeasures 2014/2015](https://www.npa.go.jp/hakusyo/h27/honbun/html/rf121000.html) — Official account of special conflict designations and later suppression of the Dojin-kai conflict.

Connected records