Adaptation of the Tenjiku Arc.
With a future where Toman has been destroyed by Mikey's twisted ideas and Takemichi returning to the past, he decides to become stronger in order to stop Kisaki's plans. On one side, a mysterious gang from Yokohama known as Tenjiku begins to overthrow all the Toman divisions, deciding to destroy all the gangs in Japan, becoming the most powerful and unique.
Kisaki has been planning something for his purposes against Toman, now that he is banned.
