Set sometime in the future. Five years have passed since the Shibuya riots. There are now several tribes that exist in Tokyo. Boys make up tribes, and they occupy areas under their influence. Kai Deguchi is a member of the tribe Musashino Saru led by Tera.
One day, a member of Musashino Saru is killed by a rival tribe, Bukuro Wu-RONZ, led by Mera. Kai and Mera are former best friends, but
