The story begins with Sekiuchi, boss of the Sannokai, a huge organized crime syndicate controlling the entire Kanto region, issuing a stern warning to his lieutenant Kato and right-hand man Ikemoto, head of the Ikemoto-gumi. Kato orders Ikemoto to bring the unassociated Murase-gumi gang in line, and he immediately passes the task on to his subordinate Otomo, who runs his own crew. The tricky jobs that no-one wants to do always end up in Otomo's lap.
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