[Machine Translation] The assassination of the fourth Yamaguchigumi leader in the Yamaichi War, said to be the worst war in history. And the fifth Yamaguchigumi was born with the Heisei era. It was the bubble economy at that time. The rich yakuza who took on the backstage work and roamed the streets. However, the reaction was so great that the Anti-Boryokudan Law was enacted and the yakuza society entered a severe period. For the yakuza, the Heisei era began in heaven and ended in hell. This book explains the assassination of Wakagashira Takumi, the tightening of the gang exclusion system, and the split that occurred during this period from the standpoint of a former legal advisor.