The yakuza are on the verge of extinction. Yet cornering the crime syndicates only adds to the burden on ordinary citizens.
The hopeless reality of this country's criminal underworld, and a vision for minimizing its damage to public safety and the economy.

Published March 5, 2026 by Kodansha +α shinsho, price 1,155 yen

・How the "five-year rule" that keeps former yakuza from making a living breeds new underground crime
・The real face of the "tokuryu" (anonymous, fluid criminal groups) and the misinformation spread about them
・The gangsters' last refuge is prison, and ordinary taxpayers foot the bill
・The longing for the yakuza: did the "chivalrous yakuza" ever really exist?

"For society, the demise of the yakuza is without doubt a welcome thing. But this book sets out to show that the current way of socially cornering rank-and-file yakuza has a side that ends up burdening ordinary citizens instead." (from the Introduction)

Contents

Introduction: A yakuza trade abandoned by the times
Chapter 1: The decline of the crime syndicates
Chapter 2: Why are the yakuza disappearing?
Chapter 3: The cause the yakuza forgot
Chapter 4: The godfather who drives a boss to kill his own underling
Chapter 5: The Kudo-kai, a syndicate in a hurry to die
Chapter 6: The advantage of the tokuryu
Chapter 7: Did the way of chivalry ever exist?
Final chapter: Disbanding the gang

published June 20,2009 / Bungeisyunjyu bunsyunsinsho / price770yen+tax

The rise and fall of “city of lust”
Where this entertainmant district goes. 3000 yakuza lives and

published May 20,2007 / kodansya+α bunko / price838yen＋tax

A surprising real face of gang readers which we saw during their rivalry.

A shocking yakuza's images which are too real !!

Violence, money, a woman, dope…This book invigorously vividly descrive the latest real image of outlaws who still survive after the sudden change of the world.

Published November 20, 2006 by Kodansha +αbunko, price 838 yen（tax-excluded）

　How was the yakuza born. What is “shinogi” and How is the actual situation of it ? How is real relations with politics? How is the “love” of man and woman in yakuza society. How is the real face of men called “don"? What rose as a result that the control was strengthened in an anti-violence measure method and an organized crime punishment sermon line? … Yaguza group who still continue surviving after postwar confusion and a bubble period of Japanese economy and even after a bubble burst. This book entirely solve their unknown actual situation that rule over black society.

Based on live comments and minute coverage of the person concerned !

Violence to globalize.
A drug, a woman, stowing away... A real image of "the dragon Mafia" who gradually steals into our daily life!

Published April 20, 2006 by Kodansha +αbunko, price 838 yen（tax-excluded）

"Rampage doragons" expanding a latent power in not only Shinjuku / Kabukicho but also all over Japan. where there is the source of intensely thorough violence which easily exceeding Japanese gangster. This book discrives their real situation in detail. The writer carried out desperate penetrate report in Hong Kong, Taiwan, Yunnan, Shanghai, and each place in China and read the latest map of Japanese black society in borderlessness maelstrom of globalization!