Jingi 21: Yakuza Decade War.

After the fierce conflict, the sand group and the dragon party were under the control of the same Kanto Ichienkai. One day, Kuroki, the driving force behind the end of the war, returned in the shape of a sword. At the dragon party, Odashima, who was Kuroki's younger brother, sprinkled a shab of the law on the sand group Shima and began to harass him. Hitoshi and Yoshiro, who realized that the aim was the Shima of the sand group, immediately talked to Odashima.